Finding the Third Proportional to 87,978 and 132,719

Step by Step Solution

1. Step 1: Write the proportion equation
   87,978 : 132,719 = 132,719 : x
2. Step 2: Convert to fraction form
   87,978/132,719 = 132,719/x
3. Step 3: Cross multiply
   87,978x = 132,719 × 132,719
4. Step 4: Simplify right side
   87,978x = 17,614,332,961
5. Step 5: Solve for x
   x = 17,614,332,961/87,978
6. Step 6: Final answer
   x = 200,212.93