Finding the Third Proportional to 2,220,448 and 5,239,936

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,448 : 5,239,936 = 5,239,936 : x
2. Step 2: Convert to fraction form
   2,220,448/5,239,936 = 5,239,936/x
3. Step 3: Cross multiply
   2,220,448x = 5,239,936 × 5,239,936
4. Step 4: Simplify right side
   2,220,448x = 27,456,929,284,096
5. Step 5: Solve for x
   x = 27,456,929,284,096/2,220,448
6. Step 6: Final answer
   x = 12,365,490.79