Finding the Third Proportional to 339,039 and 723,060

Step by Step Solution

1. Step 1: Write the proportion equation
   339,039 : 723,060 = 723,060 : x
2. Step 2: Convert to fraction form
   339,039/723,060 = 723,060/x
3. Step 3: Cross multiply
   339,039x = 723,060 × 723,060
4. Step 4: Simplify right side
   339,039x = 522,815,763,600
5. Step 5: Solve for x
   x = 522,815,763,600/339,039
6. Step 6: Final answer
   x = 1,542,051.99