Finding the Third Proportional to 1,236,434 and 2,605,707

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236,434 : 2,605,707 = 2,605,707 : x
2. Step 2: Convert to fraction form
   1,236,434/2,605,707 = 2,605,707/x
3. Step 3: Cross multiply
   1,236,434x = 2,605,707 × 2,605,707
4. Step 4: Simplify right side
   1,236,434x = 6,789,708,969,849
5. Step 5: Solve for x
   x = 6,789,708,969,849/1,236,434
6. Step 6: Final answer
   x = 5,491,363.85