Finding the Third Proportional to 618,086 and 1,283,542

Step by Step Solution

1. Step 1: Write the proportion equation
   618,086 : 1,283,542 = 1,283,542 : x
2. Step 2: Convert to fraction form
   618,086/1,283,542 = 1,283,542/x
3. Step 3: Cross multiply
   618,086x = 1,283,542 × 1,283,542
4. Step 4: Simplify right side
   618,086x = 1,647,480,065,764
5. Step 5: Solve for x
   x = 1,647,480,065,764/618,086
6. Step 6: Final answer
   x = 2,665,454.43