Saving travelled distance as a score

Hello im making a runner game and I am at the part where I have set up my score system. For my game the score will be the distance you have travelled. I want to know how could I save the distance I travelled in my level scene and show it in my game over scene. Here is the full script that Im using to get my travelled distance.

 using UnityEngine;
 using System.Collections;
  
 public class Runner : MonoBehaviour {
  
     public static float distanceTraveled;
  
     public float acceleration;
     public Vector3 boostVelocity, jumpVelocity;
     public float gameOverY;
  
     private bool touchingPlatform;
     
     private static int boosts;
  
     void Update () {
        if(Input.GetButtonDown("Jump")){
             if(touchingPlatform){
          rigidbody.AddForce(jumpVelocity, ForceMode.VelocityChange);
          touchingPlatform = false;
                 }
             else if(boosts > 0){
                 rigidbody.AddForce(boostVelocity, ForceMode.VelocityChange);
                 boosts -= 1;
                 GUIManager.SetBoosts(boosts);
             }
        }
        distanceTraveled = transform.localPosition.x;
         GUIManager.SetDistance(distanceTraveled);
  
        if(transform.localPosition.y < gameOverY)
     StartCoroutine("DelayedLevelLoad");
     }
                 
             IEnumerator DelayedLevelLoad(){
           yield return new WaitForSeconds(1);
           Application.LoadLevel("GameOver");
          }
             
  
     void FixedUpdate () {
        if(touchingPlatform){
          rigidbody.AddForce(acceleration, 0f, 0f, ForceMode.Acceleration);
        }
     }
  
     void OnCollisionEnter () {
        touchingPlatform = true;
     }
  
     void OnCollisionExit () {
        touchingPlatform = false;
     }
     
     private void GameStart () {
         boosts = 0;
         GUIManager.SetBoosts(boosts);
         distanceTraveled = 0f;
         GUIManager.SetDistance(distanceTraveled);
         
     }
     
     public static void AddBoost(){
         boosts += 1;
         GUIManager.SetBoosts(boosts);
     }
 }

Right now the only way of knowing my score is just that I can see it in the top part of my screen, but when I die I cant check anywhere what my score was. So any ideas on how I could do this?