Finding the Third Proportional to 325,694 and 717,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   325,694 : 717,648.50 = 717,648.50 : x
2. Step 2: Convert to fraction form
   325,694/717,648.50 = 717,648.50/x
3. Step 3: Cross multiply
   325,694x = 717,648.50 × 717,648.50
4. Step 4: Simplify right side
   325,694x = 515,019,369,552.25
5. Step 5: Solve for x
   x = 515,019,369,552.25/325,694
6. Step 6: Final answer
   x = 1,581,298.30