RotateAround and Character Controller

I'm trying to create a circling behavior for my AI that uses a character controller. I've created a Seeking and Fleeing behavior that involves modifying the agent's forward direction, storing it, and using it inside: CharacterController.Move(direction);

I'm not sure how to mathematically have the agent orbit around the target, so I wanted to use Transform.RotateAround, but then physics wouldn't be checked by the character controller, and I can't store the result of RotateAround, because it returns void. I also want to make sure that I have the AI facing his forward direction still.

This is the code I have so far, excluding the use of Controller.Move:

  transform.RotateAround(targetPos, Vector3.up, projectedDistance * Time.deltaTime);

Any help with having my AI with a character controller rotate around a target?

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UPDATE:

Thanks to whydoidoit, i'm getting closer to solving it. The agent moves in a circular motion while moving towards the target, but instead of a constant orbit, it stops when it gets close to the target, then runs in place.

Here is the code I have:

      public bool Circle(Vector3 targetPos)
             {
                 var tempDir = (targetPos - trans.position);
                 direction = new Vector3(tempDir.x, direction.y, tempDir.z);
     
                 var rotDirection = RotateAbout(direction, targetPos, Vector3.up, 1);
     
                 if ((tempDir.magnitude > minDistance) && tempDir.magnitude < safeDistance)
                 {
                     ObstacleAvoidance(ref direction, new Vector3(2f, 1, 2f), checkObstacles);
                //Applies gravity and stuff
                CharacterBasics();
     
                     //Check for potential pitfalls
                     RaycastHit hit;
                     if (Physics.Raycast(trans.position + trans.forward, Vector3.down, out hit, 3))
                     {
                         targetSpeed = maxSpeed;
                         controller.Move((rotDirection) * Time.deltaTime);
                     }
                     else
                     { targetSpeed = 0; }
                     return false;
                 }
         }