Finding the Third Proportional to 5,715,728 and 12,217,488

Step by Step Solution

1. Step 1: Write the proportion equation
   5,715,728 : 12,217,488 = 12,217,488 : x
2. Step 2: Convert to fraction form
   5,715,728/12,217,488 = 12,217,488/x
3. Step 3: Cross multiply
   5,715,728x = 12,217,488 × 12,217,488
4. Step 4: Simplify right side
   5,715,728x = 149,267,013,030,144
5. Step 5: Solve for x
   x = 149,267,013,030,144/5,715,728
6. Step 6: Final answer
   x = 26,115,135.82