Finding the Third Proportional to 411,721.50 and 880,521

Step by Step Solution

1. Step 1: Write the proportion equation
   411,721.50 : 880,521 = 880,521 : x
2. Step 2: Convert to fraction form
   411,721.50/880,521 = 880,521/x
3. Step 3: Cross multiply
   411,721.50x = 880,521 × 880,521
4. Step 4: Simplify right side
   411,721.50x = 775,317,231,441
5. Step 5: Solve for x
   x = 775,317,231,441/411,721.50
6. Step 6: Final answer
   x = 1,883,110.87