Finding the Third Proportional to 91,372.50 and 137,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,372.50 : 137,058.50 = 137,058.50 : x
2. Step 2: Convert to fraction form
   91,372.50/137,058.50 = 137,058.50/x
3. Step 3: Cross multiply
   91,372.50x = 137,058.50 × 137,058.50
4. Step 4: Simplify right side
   91,372.50x = 18,785,032,422.25
5. Step 5: Solve for x
   x = 18,785,032,422.25/91,372.50
6. Step 6: Final answer
   x = 205,587.38