Finding the Third Proportional to 11,666,656 and 18,259,872

Step by Step Solution

1. Step 1: Write the proportion equation
   11,666,656 : 18,259,872 = 18,259,872 : x
2. Step 2: Convert to fraction form
   11,666,656/18,259,872 = 18,259,872/x
3. Step 3: Cross multiply
   11,666,656x = 18,259,872 × 18,259,872
4. Step 4: Simplify right side
   11,666,656x = 333,422,925,456,384
5. Step 5: Solve for x
   x = 333,422,925,456,384/11,666,656
6. Step 6: Final answer
   x = 28,579,134.03