Finding the Third Proportional to 639,048 and 1,002,456

Step by Step Solution

1. Step 1: Write the proportion equation
   639,048 : 1,002,456 = 1,002,456 : x
2. Step 2: Convert to fraction form
   639,048/1,002,456 = 1,002,456/x
3. Step 3: Cross multiply
   639,048x = 1,002,456 × 1,002,456
4. Step 4: Simplify right side
   639,048x = 1,004,918,031,936
5. Step 5: Solve for x
   x = 1,004,918,031,936/639,048
6. Step 6: Final answer
   x = 1,572,523.55