Finding the Third Proportional to 519,948 and 1,128,780

Step by Step Solution

1. Step 1: Write the proportion equation
   519,948 : 1,128,780 = 1,128,780 : x
2. Step 2: Convert to fraction form
   519,948/1,128,780 = 1,128,780/x
3. Step 3: Cross multiply
   519,948x = 1,128,780 × 1,128,780
4. Step 4: Simplify right side
   519,948x = 1,274,144,288,400
5. Step 5: Solve for x
   x = 1,274,144,288,400/519,948
6. Step 6: Final answer
   x = 2,450,522.53