Finding the Third Proportional to 60,077.50 and 129,792

Step by Step Solution

1. Step 1: Write the proportion equation
   60,077.50 : 129,792 = 129,792 : x
2. Step 2: Convert to fraction form
   60,077.50/129,792 = 129,792/x
3. Step 3: Cross multiply
   60,077.50x = 129,792 × 129,792
4. Step 4: Simplify right side
   60,077.50x = 16,845,963,264
5. Step 5: Solve for x
   x = 16,845,963,264/60,077.50
6. Step 6: Final answer
   x = 280,403.87