Finding the Third Proportional to 789,874 and 1,128,707

Step by Step Solution

1. Step 1: Write the proportion equation
   789,874 : 1,128,707 = 1,128,707 : x
2. Step 2: Convert to fraction form
   789,874/1,128,707 = 1,128,707/x
3. Step 3: Cross multiply
   789,874x = 1,128,707 × 1,128,707
4. Step 4: Simplify right side
   789,874x = 1,273,979,491,849
5. Step 5: Solve for x
   x = 1,273,979,491,849/789,874
6. Step 6: Final answer
   x = 1,612,889.51