Finding the Third Proportional to 408,074.50 and 888,428

Step by Step Solution

1. Step 1: Write the proportion equation
   408,074.50 : 888,428 = 888,428 : x
2. Step 2: Convert to fraction form
   408,074.50/888,428 = 888,428/x
3. Step 3: Cross multiply
   408,074.50x = 888,428 × 888,428
4. Step 4: Simplify right side
   408,074.50x = 789,304,311,184
5. Step 5: Solve for x
   x = 789,304,311,184/408,074.50
6. Step 6: Final answer
   x = 1,934,216.21