Finding the Third Proportional to 86,775 and 131,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,775 : 131,086.50 = 131,086.50 : x
2. Step 2: Convert to fraction form
   86,775/131,086.50 = 131,086.50/x
3. Step 3: Cross multiply
   86,775x = 131,086.50 × 131,086.50
4. Step 4: Simplify right side
   86,775x = 17,183,670,482.25
5. Step 5: Solve for x
   x = 17,183,670,482.25/86,775
6. Step 6: Final answer
   x = 198,025.59