Finding the Third Proportional to 485,403 and 1,009,542

Step by Step Solution

1. Step 1: Write the proportion equation
   485,403 : 1,009,542 = 1,009,542 : x
2. Step 2: Convert to fraction form
   485,403/1,009,542 = 1,009,542/x
3. Step 3: Cross multiply
   485,403x = 1,009,542 × 1,009,542
4. Step 4: Simplify right side
   485,403x = 1,019,175,049,764
5. Step 5: Solve for x
   x = 1,019,175,049,764/485,403
6. Step 6: Final answer
   x = 2,099,647.20