[How-to] Find the middle point between sides of two distant objects.

[In reference to my attachment]
I would like to find the middle point between object A's right-most segment (in green) and object B's left-most segment (in blue), quickly, effectively and reliably.
Ideally, there's a function i'm not familiar with that exists . I would rather not resort to having to create more objects to "figure out" the middle point manually, so-to speak.

Dandreu,
In a more general case than assumed in the first post, if you wish to have an actual key point, you may:
1) Direct Select each of the path segments in question and Ctrl/Cmd+C+F+X+F,
2) Select either and rotate it by 180 degrees,
3) Object>Blend>Blend Options, with 1 Step, then Object>Blend>Make, then Object>Blend>Expand,
4) Select the line in the middle and Object>Path>Add Anchor Point.
You may also do a similar way where you add an Anchor Point at the middle of the segments and ClickDrag with the Line Segment Tool between them, but that is a bit destructive.

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