Finding the Third Proportional to 1,115,684 and 2,438,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,115,684 : 2,438,728 = 2,438,728 : x
2. Step 2: Convert to fraction form
   1,115,684/2,438,728 = 2,438,728/x
3. Step 3: Cross multiply
   1,115,684x = 2,438,728 × 2,438,728
4. Step 4: Simplify right side
   1,115,684x = 5,947,394,257,984
5. Step 5: Solve for x
   x = 5,947,394,257,984/1,115,684
6. Step 6: Final answer
   x = 5,330,715.74