Finding the Third Proportional to 86,928 and 131,610

Step by Step Solution

1. Step 1: Write the proportion equation
   86,928 : 131,610 = 131,610 : x
2. Step 2: Convert to fraction form
   86,928/131,610 = 131,610/x
3. Step 3: Cross multiply
   86,928x = 131,610 × 131,610
4. Step 4: Simplify right side
   86,928x = 17,321,192,100
5. Step 5: Solve for x
   x = 17,321,192,100/86,928
6. Step 6: Final answer
   x = 199,259.07