Finding the Third Proportional to 851,499 and 1,280,805

Step by Step Solution

1. Step 1: Write the proportion equation
   851,499 : 1,280,805 = 1,280,805 : x
2. Step 2: Convert to fraction form
   851,499/1,280,805 = 1,280,805/x
3. Step 3: Cross multiply
   851,499x = 1,280,805 × 1,280,805
4. Step 4: Simplify right side
   851,499x = 1,640,461,448,025
5. Step 5: Solve for x
   x = 1,640,461,448,025/851,499
6. Step 6: Final answer
   x = 1,926,557.10