Finding the Third Proportional to 13,122,372 and 17,665,218

Step by Step Solution

1. Step 1: Write the proportion equation
   13,122,372 : 17,665,218 = 17,665,218 : x
2. Step 2: Convert to fraction form
   13,122,372/17,665,218 = 17,665,218/x
3. Step 3: Cross multiply
   13,122,372x = 17,665,218 × 17,665,218
4. Step 4: Simplify right side
   13,122,372x = 312,059,926,987,524
5. Step 5: Solve for x
   x = 312,059,926,987,524/13,122,372
6. Step 6: Final answer
   x = 23,780,756.02