How to slowly move a platform over to a certain point?

I have a script working where OnCollisionEnter my platform moves to a specified point.

But right now it is too fast and jerky. How can I transition the movement by sliding it over in a certain amount of time?

Any scripts out there to do that? Or, any built in thing?

NOTE: I would like a transition without setting up a waypoint system. Just a transition.

You can use a function like this, or try one of the more advanced systems in the links on that page.