Finding the Third Proportional to 329,674 and 710,540

Step by Step Solution

1. Step 1: Write the proportion equation
   329,674 : 710,540 = 710,540 : x
2. Step 2: Convert to fraction form
   329,674/710,540 = 710,540/x
3. Step 3: Cross multiply
   329,674x = 710,540 × 710,540
4. Step 4: Simplify right side
   329,674x = 504,867,091,600
5. Step 5: Solve for x
   x = 504,867,091,600/329,674
6. Step 6: Final answer
   x = 1,531,413.13