Finding the Third Proportional to 86,449.50 and 187,110

Step by Step Solution

1. Step 1: Write the proportion equation
   86,449.50 : 187,110 = 187,110 : x
2. Step 2: Convert to fraction form
   86,449.50/187,110 = 187,110/x
3. Step 3: Cross multiply
   86,449.50x = 187,110 × 187,110
4. Step 4: Simplify right side
   86,449.50x = 35,010,152,100
5. Step 5: Solve for x
   x = 35,010,152,100/86,449.50
6. Step 6: Final answer
   x = 404,978.08