Finding the Third Proportional to 1,131,326 and 2,439,678

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,326 : 2,439,678 = 2,439,678 : x
2. Step 2: Convert to fraction form
   1,131,326/2,439,678 = 2,439,678/x
3. Step 3: Cross multiply
   1,131,326x = 2,439,678 × 2,439,678
4. Step 4: Simplify right side
   1,131,326x = 5,952,028,743,684
5. Step 5: Solve for x
   x = 5,952,028,743,684/1,131,326
6. Step 6: Final answer
   x = 5,261,108.42