Finding the Third Proportional to 313,608 and 471,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   313,608 : 471,118.50 = 471,118.50 : x
2. Step 2: Convert to fraction form
   313,608/471,118.50 = 471,118.50/x
3. Step 3: Cross multiply
   313,608x = 471,118.50 × 471,118.50
4. Step 4: Simplify right side
   313,608x = 221,952,641,042.25
5. Step 5: Solve for x
   x = 221,952,641,042.25/313,608
6. Step 6: Final answer
   x = 707,739.09