Finding the Third Proportional to 404,828 and 605,040

Step by Step Solution

1. Step 1: Write the proportion equation
   404,828 : 605,040 = 605,040 : x
2. Step 2: Convert to fraction form
   404,828/605,040 = 605,040/x
3. Step 3: Cross multiply
   404,828x = 605,040 × 605,040
4. Step 4: Simplify right side
   404,828x = 366,073,401,600
5. Step 5: Solve for x
   x = 366,073,401,600/404,828
6. Step 6: Final answer
   x = 904,268.98