Finding the Third Proportional to 404,839 and 605,028

Step by Step Solution

1. Step 1: Write the proportion equation
   404,839 : 605,028 = 605,028 : x
2. Step 2: Convert to fraction form
   404,839/605,028 = 605,028/x
3. Step 3: Cross multiply
   404,839x = 605,028 × 605,028
4. Step 4: Simplify right side
   404,839x = 366,058,880,784
5. Step 5: Solve for x
   x = 366,058,880,784/404,839
6. Step 6: Final answer
   x = 904,208.54