Finding the Third Proportional to 404,857 and 605,055

Step by Step Solution

1. Step 1: Write the proportion equation
   404,857 : 605,055 = 605,055 : x
2. Step 2: Convert to fraction form
   404,857/605,055 = 605,055/x
3. Step 3: Cross multiply
   404,857x = 605,055 × 605,055
4. Step 4: Simplify right side
   404,857x = 366,091,553,025
5. Step 5: Solve for x
   x = 366,091,553,025/404,857
6. Step 6: Final answer
   x = 904,249.04