Finding the Third Proportional to 828,956.50 and 1,280,065

Step by Step Solution

1. Step 1: Write the proportion equation
   828,956.50 : 1,280,065 = 1,280,065 : x
2. Step 2: Convert to fraction form
   828,956.50/1,280,065 = 1,280,065/x
3. Step 3: Cross multiply
   828,956.50x = 1,280,065 × 1,280,065
4. Step 4: Simplify right side
   828,956.50x = 1,638,566,404,225
5. Step 5: Solve for x
   x = 1,638,566,404,225/828,956.50
6. Step 6: Final answer
   x = 1,976,661.51