Finding the Third Proportional to 2,403,648 and 5,617,728

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403,648 : 5,617,728 = 5,617,728 : x
2. Step 2: Convert to fraction form
   2,403,648/5,617,728 = 5,617,728/x
3. Step 3: Cross multiply
   2,403,648x = 5,617,728 × 5,617,728
4. Step 4: Simplify right side
   2,403,648x = 31,558,867,881,984
5. Step 5: Solve for x
   x = 31,558,867,881,984/2,403,648
6. Step 6: Final answer
   x = 13,129,571.34