Finding the Third Proportional to 1,268,712 and 1,855,434

Step by Step Solution

1. Step 1: Write the proportion equation
   1,268,712 : 1,855,434 = 1,855,434 : x
2. Step 2: Convert to fraction form
   1,268,712/1,855,434 = 1,855,434/x
3. Step 3: Cross multiply
   1,268,712x = 1,855,434 × 1,855,434
4. Step 4: Simplify right side
   1,268,712x = 3,442,635,328,356
5. Step 5: Solve for x
   x = 3,442,635,328,356/1,268,712
6. Step 6: Final answer
   x = 2,713,488.43