[HELP] Parabolic movement of a gameObject in Unity

Currently I'm working on a 3D game. In this game my player is a ball and it can jump from tile to tile. The movement of the ball is 45 degrees left or right when it jumps. I want to make it jump in a parabolic path. But I'm unable to do that. I have used Mecanim, AngleAxis, and lerp as well. But the problem is when I use lerp and animation together, firstly the lerp works then the animation(Jump animation). Basically the ball has a parent and mainly the parent lerps between the tiles and the ball itself has the animation clip attached to it.

here is my code attached to the parent :

 if (Input.GetKeyDown(KeyCode.LeftArrow))
                 {
                     Vector3 dir = Quaternion.AngleAxis(45, Vector3.up) * Vector3.forward;
                     rb.AddForce(dir * 500);
                     anim.SetTrigger("LeftSingle");
                 }

By this I can move the Parent from One tile to another and the Animation works fine with it. But the problem is, the distance it travels is not static.It varies time to time. What will be the best way to fulfill my purpose? Any suggestions or help is appreciated.