Finding the Third Proportional to 28,372.50 and 60,331.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,372.50 : 60,331.50 = 60,331.50 : x
2. Step 2: Convert to fraction form
   28,372.50/60,331.50 = 60,331.50/x
3. Step 3: Cross multiply
   28,372.50x = 60,331.50 × 60,331.50
4. Step 4: Simplify right side
   28,372.50x = 3,639,889,892.25
5. Step 5: Solve for x
   x = 3,639,889,892.25/28,372.50
6. Step 6: Final answer
   x = 128,289.36