Finding the Third Proportional to 485,496 and 990,265.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,496 : 990,265.50 = 990,265.50 : x
2. Step 2: Convert to fraction form
   485,496/990,265.50 = 990,265.50/x
3. Step 3: Cross multiply
   485,496x = 990,265.50 × 990,265.50
4. Step 4: Simplify right side
   485,496x = 980,625,760,490.25
5. Step 5: Solve for x
   x = 980,625,760,490.25/485,496
6. Step 6: Final answer
   x = 2,019,843.13