Finding the Third Proportional to 403,398 and 880,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,398 : 880,150.50 = 880,150.50 : x
2. Step 2: Convert to fraction form
   403,398/880,150.50 = 880,150.50/x
3. Step 3: Cross multiply
   403,398x = 880,150.50 × 880,150.50
4. Step 4: Simplify right side
   403,398x = 774,664,902,650.25
5. Step 5: Solve for x
   x = 774,664,902,650.25/403,398
6. Step 6: Final answer
   x = 1,920,348.89