Finding the Third Proportional to 328,338 and 709,060

Step by Step Solution

1. Step 1: Write the proportion equation
   328,338 : 709,060 = 709,060 : x
2. Step 2: Convert to fraction form
   328,338/709,060 = 709,060/x
3. Step 3: Cross multiply
   328,338x = 709,060 × 709,060
4. Step 4: Simplify right side
   328,338x = 502,766,083,600
5. Step 5: Solve for x
   x = 502,766,083,600/328,338
6. Step 6: Final answer
   x = 1,531,245.50