Answer:
I hope this is right 
TG = 34 TG=34 inches
From the figure
 PQR is a triangle
 PS, QT are medians of the triangle 
 G is the centroid
Step 1: Calculate the segment of the median (TG = ? )
 We know that
 Each median is divided into segments with a 2:1 ratio by the triangle centroid.
 \therefore \frac{TG}{GQ} = \frac{2}{1} ∴ 
GQ/TG = 1/2
 
 TG = 2 GQ TG=2GQ
 TG = 2 * 17 TG=2∗17
 TG = 34 TG=34
 Hence, segment of the median TG = 34 inches