Finding the Third Proportional to 404,830 and 888,390

Step by Step Solution

1. Step 1: Write the proportion equation
   404,830 : 888,390 = 888,390 : x
2. Step 2: Convert to fraction form
   404,830/888,390 = 888,390/x
3. Step 3: Cross multiply
   404,830x = 888,390 × 888,390
4. Step 4: Simplify right side
   404,830x = 789,236,792,100
5. Step 5: Solve for x
   x = 789,236,792,100/404,830
6. Step 6: Final answer
   x = 1,949,551.15