Finding the Third Proportional to 1,139,592 and 2,431,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,592 : 2,431,728 = 2,431,728 : x
2. Step 2: Convert to fraction form
   1,139,592/2,431,728 = 2,431,728/x
3. Step 3: Cross multiply
   1,139,592x = 2,431,728 × 2,431,728
4. Step 4: Simplify right side
   1,139,592x = 5,913,301,065,984
5. Step 5: Solve for x
   x = 5,913,301,065,984/1,139,592
6. Step 6: Final answer
   x = 5,188,963.30