Finding the Third Proportional to 28,688.25 and 62,142.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,688.25 : 62,142.75 = 62,142.75 : x
2. Step 2: Convert to fraction form
   28,688.25/62,142.75 = 62,142.75/x
3. Step 3: Cross multiply
   28,688.25x = 62,142.75 × 62,142.75
4. Step 4: Simplify right side
   28,688.25x = 3,861,721,377.56
5. Step 5: Solve for x
   x = 3,861,721,377.56/28,688.25
6. Step 6: Final answer
   x = 134,609.86