Finding the Third Proportional to 11,647,564 and 18,016,435

Step by Step Solution

1. Step 1: Write the proportion equation
   11,647,564 : 18,016,435 = 18,016,435 : x
2. Step 2: Convert to fraction form
   11,647,564/18,016,435 = 18,016,435/x
3. Step 3: Cross multiply
   11,647,564x = 18,016,435 × 18,016,435
4. Step 4: Simplify right side
   11,647,564x = 324,591,930,109,225
5. Step 5: Solve for x
   x = 324,591,930,109,225/11,647,564
6. Step 6: Final answer
   x = 27,867,795.37