Finding the Third Proportional to 86,544 and 131,436

Step by Step Solution

1. Step 1: Write the proportion equation
   86,544 : 131,436 = 131,436 : x
2. Step 2: Convert to fraction form
   86,544/131,436 = 131,436/x
3. Step 3: Cross multiply
   86,544x = 131,436 × 131,436
4. Step 4: Simplify right side
   86,544x = 17,275,422,096
5. Step 5: Solve for x
   x = 17,275,422,096/86,544
6. Step 6: Final answer
   x = 199,614.32