Finding the Third Proportional to 87,187.88 and 123,404.75

Step by Step Solution

1. Step 1: Write the proportion equation
   87,187.88 : 123,404.75 = 123,404.75 : x
2. Step 2: Convert to fraction form
   87,187.88/123,404.75 = 123,404.75/x
3. Step 3: Cross multiply
   87,187.88x = 123,404.75 × 123,404.75
4. Step 4: Simplify right side
   87,187.88x = 15,228,732,322.56
5. Step 5: Solve for x
   x = 15,228,732,322.56/87,187.88
6. Step 6: Final answer
   x = 174,665.71