Finding the Third Proportional to 60,684 and 129,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,684 : 129,022.50 = 129,022.50 : x
2. Step 2: Convert to fraction form
   60,684/129,022.50 = 129,022.50/x
3. Step 3: Cross multiply
   60,684x = 129,022.50 × 129,022.50
4. Step 4: Simplify right side
   60,684x = 16,646,805,506.25
5. Step 5: Solve for x
   x = 16,646,805,506.25/60,684
6. Step 6: Final answer
   x = 274,319.52