Finding the Third Proportional to 517,948 and 1,138,680

Step by Step Solution

1. Step 1: Write the proportion equation
   517,948 : 1,138,680 = 1,138,680 : x
2. Step 2: Convert to fraction form
   517,948/1,138,680 = 1,138,680/x
3. Step 3: Cross multiply
   517,948x = 1,138,680 × 1,138,680
4. Step 4: Simplify right side
   517,948x = 1,296,592,142,400
5. Step 5: Solve for x
   x = 1,296,592,142,400/517,948
6. Step 6: Final answer
   x = 2,503,324.93