Answer:
The median side measures 92 yards
Explanation:
Let's call x, y, and z the measures of the sides of the triangle.
The ratios between them are:


The first ratio gives the relation:

The second ratio can be solved for z:

Since the perimeter is 299 yards:

Substituting the above relations:

Multiplying by 4:

Joining like terms:

Dividing by 13:

x=92
Now calculate y:

y = 161

z=46
The median side measures 92 yards