Finding the Third Proportional to 28,688.50 and 62,143.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,688.50 : 62,143.25 = 62,143.25 : x
2. Step 2: Convert to fraction form
   28,688.50/62,143.25 = 62,143.25/x
3. Step 3: Cross multiply
   28,688.50x = 62,143.25 × 62,143.25
4. Step 4: Simplify right side
   28,688.50x = 3,861,783,520.56
5. Step 5: Solve for x
   x = 3,861,783,520.56/28,688.50
6. Step 6: Final answer
   x = 134,610.86