Finding the Third Proportional to 40,128.38 and 59,614.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,128.38 : 59,614.88 = 59,614.88 : x
2. Step 2: Convert to fraction form
   40,128.38/59,614.88 = 59,614.88/x
3. Step 3: Cross multiply
   40,128.38x = 59,614.88 × 59,614.88
4. Step 4: Simplify right side
   40,128.38x = 3,553,933,321.27
5. Step 5: Solve for x
   x = 3,553,933,321.27/40,128.38
6. Step 6: Final answer
   x = 88,564.10