Finding the Third Proportional to 738,720 and 1,002,780

Step by Step Solution

1. Step 1: Write the proportion equation
   738,720 : 1,002,780 = 1,002,780 : x
2. Step 2: Convert to fraction form
   738,720/1,002,780 = 1,002,780/x
3. Step 3: Cross multiply
   738,720x = 1,002,780 × 1,002,780
4. Step 4: Simplify right side
   738,720x = 1,005,567,728,400
5. Step 5: Solve for x
   x = 1,005,567,728,400/738,720
6. Step 6: Final answer
   x = 1,361,229.87