Finding the Third Proportional to 519,728 and 1,173,872

Step by Step Solution

1. Step 1: Write the proportion equation
   519,728 : 1,173,872 = 1,173,872 : x
2. Step 2: Convert to fraction form
   519,728/1,173,872 = 1,173,872/x
3. Step 3: Cross multiply
   519,728x = 1,173,872 × 1,173,872
4. Step 4: Simplify right side
   519,728x = 1,377,975,472,384
5. Step 5: Solve for x
   x = 1,377,975,472,384/519,728
6. Step 6: Final answer
   x = 2,651,339.69