Finding the Third Proportional to 86,762 and 131,238

Step by Step Solution

1. Step 1: Write the proportion equation
   86,762 : 131,238 = 131,238 : x
2. Step 2: Convert to fraction form
   86,762/131,238 = 131,238/x
3. Step 3: Cross multiply
   86,762x = 131,238 × 131,238
4. Step 4: Simplify right side
   86,762x = 17,223,412,644
5. Step 5: Solve for x
   x = 17,223,412,644/86,762
6. Step 6: Final answer
   x = 198,513.32