Finding the Third Proportional to 87,732 and 137,484

Step by Step Solution

1. Step 1: Write the proportion equation
   87,732 : 137,484 = 137,484 : x
2. Step 2: Convert to fraction form
   87,732/137,484 = 137,484/x
3. Step 3: Cross multiply
   87,732x = 137,484 × 137,484
4. Step 4: Simplify right side
   87,732x = 18,901,850,256
5. Step 5: Solve for x
   x = 18,901,850,256/87,732
6. Step 6: Final answer
   x = 215,449.90