Finding the Third Proportional to 1,268,712 and 1,855,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,268,712 : 1,855,440 = 1,855,440 : x
2. Step 2: Convert to fraction form
   1,268,712/1,855,440 = 1,855,440/x
3. Step 3: Cross multiply
   1,268,712x = 1,855,440 × 1,855,440
4. Step 4: Simplify right side
   1,268,712x = 3,442,657,593,600
5. Step 5: Solve for x
   x = 3,442,657,593,600/1,268,712
6. Step 6: Final answer
   x = 2,713,505.98