Finding the Third Proportional to 408,906 and 880,020

Step by Step Solution

1. Step 1: Write the proportion equation
   408,906 : 880,020 = 880,020 : x
2. Step 2: Convert to fraction form
   408,906/880,020 = 880,020/x
3. Step 3: Cross multiply
   408,906x = 880,020 × 880,020
4. Step 4: Simplify right side
   408,906x = 774,435,200,400
5. Step 5: Solve for x
   x = 774,435,200,400/408,906
6. Step 6: Final answer
   x = 1,893,919.87