Finding the Third Proportional to 404,866 and 605,069

Step by Step Solution

1. Step 1: Write the proportion equation
   404,866 : 605,069 = 605,069 : x
2. Step 2: Convert to fraction form
   404,866/605,069 = 605,069/x
3. Step 3: Cross multiply
   404,866x = 605,069 × 605,069
4. Step 4: Simplify right side
   404,866x = 366,108,494,761
5. Step 5: Solve for x
   x = 366,108,494,761/404,866
6. Step 6: Final answer
   x = 904,270.78