Finding the Third Proportional to 404,406 and 880,159.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,406 : 880,159.50 = 880,159.50 : x
2. Step 2: Convert to fraction form
   404,406/880,159.50 = 880,159.50/x
3. Step 3: Cross multiply
   404,406x = 880,159.50 × 880,159.50
4. Step 4: Simplify right side
   404,406x = 774,680,745,440.25
5. Step 5: Solve for x
   x = 774,680,745,440.25/404,406
6. Step 6: Final answer
   x = 1,915,601.51