Finding the Third Proportional to 728,290 and 1,485,496

Step by Step Solution

1. Step 1: Write the proportion equation
   728,290 : 1,485,496 = 1,485,496 : x
2. Step 2: Convert to fraction form
   728,290/1,485,496 = 1,485,496/x
3. Step 3: Cross multiply
   728,290x = 1,485,496 × 1,485,496
4. Step 4: Simplify right side
   728,290x = 2,206,698,366,016
5. Step 5: Solve for x
   x = 2,206,698,366,016/728,290
6. Step 6: Final answer
   x = 3,029,972.08