How can i calculate the higher value between three variables?

I'll explain, my game has a story with three routes controlled by three different variables and at one point in the story I should make it so that the game takes one path based on which one of the three variables has the higher value
How can I do this?

Conditional branch. Variable to variable. if one is higher than two, - conditional branch - variable to variable. Is one higher than three, else conditional branch - is two higher than three

Thanks!