Finding the Third Proportional to 407,988 and 959,689.50

Step by Step Solution

1. Step 1: Write the proportion equation
   407,988 : 959,689.50 = 959,689.50 : x
2. Step 2: Convert to fraction form
   407,988/959,689.50 = 959,689.50/x
3. Step 3: Cross multiply
   407,988x = 959,689.50 × 959,689.50
4. Step 4: Simplify right side
   407,988x = 921,003,936,410.25
5. Step 5: Solve for x
   x = 921,003,936,410.25/407,988
6. Step 6: Final answer
   x = 2,257,428.98