Finding the Third Proportional to 521,644 and 1,142,918

Step by Step Solution

1. Step 1: Write the proportion equation
   521,644 : 1,142,918 = 1,142,918 : x
2. Step 2: Convert to fraction form
   521,644/1,142,918 = 1,142,918/x
3. Step 3: Cross multiply
   521,644x = 1,142,918 × 1,142,918
4. Step 4: Simplify right side
   521,644x = 1,306,261,554,724
5. Step 5: Solve for x
   x = 1,306,261,554,724/521,644
6. Step 6: Final answer
   x = 2,504,124.57