Finding the Third Proportional to 87,446.25 and 187,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,446.25 : 187,339.50 = 187,339.50 : x
2. Step 2: Convert to fraction form
   87,446.25/187,339.50 = 187,339.50/x
3. Step 3: Cross multiply
   87,446.25x = 187,339.50 × 187,339.50
4. Step 4: Simplify right side
   87,446.25x = 35,096,088,260.25
5. Step 5: Solve for x
   x = 35,096,088,260.25/87,446.25
6. Step 6: Final answer
   x = 401,344.69