Connect a straight line tangent to two arbitrary curves

[DarkTortie]

This is extremely easy to do with a straight edge in the physical world but I cannot for the life of me figure out how to do this in Illustrator. 

If anyone has a solution to this that is not a plugin that I have to pay for (because this is a hobby and I am already spending more than my budget likes just for Illustrator) I would love to hear it! 

[Ton Frederiks · Accepted solution]

Maybe the Common Tangents script from SATO Hiroyuki helps

https://shanfan.github.io/Illustrator-Scripts-Archive/

[Kurt Gold · Accepted solution]

The Common Tangents script by Hiroyuki Sato may help.

https://shanfan.github.io/Illustrator-Scripts-Archive

[DarkTortie]

@Ton Frederiks @Kurt Gold Thank you both this is exactly what I was looking for! 

[Ton Frederiks]

Good to hear that helped.