Finding the Third Proportional to 11,726,656 and 17,938,728

Step by Step Solution

1. Step 1: Write the proportion equation
   11,726,656 : 17,938,728 = 17,938,728 : x
2. Step 2: Convert to fraction form
   11,726,656/17,938,728 = 17,938,728/x
3. Step 3: Cross multiply
   11,726,656x = 17,938,728 × 17,938,728
4. Step 4: Simplify right side
   11,726,656x = 321,797,962,257,984
5. Step 5: Solve for x
   x = 321,797,962,257,984/11,726,656
6. Step 6: Final answer
   x = 27,441,579.45