Finding the Third Proportional to 322,708.50 and 701,388

Step by Step Solution

1. Step 1: Write the proportion equation
   322,708.50 : 701,388 = 701,388 : x
2. Step 2: Convert to fraction form
   322,708.50/701,388 = 701,388/x
3. Step 3: Cross multiply
   322,708.50x = 701,388 × 701,388
4. Step 4: Simplify right side
   322,708.50x = 491,945,126,544
5. Step 5: Solve for x
   x = 491,945,126,544/322,708.50
6. Step 6: Final answer
   x = 1,524,425.69