Finding the Third Proportional to 3,323,978 and 7,144,517

Step by Step Solution

1. Step 1: Write the proportion equation
   3,323,978 : 7,144,517 = 7,144,517 : x
2. Step 2: Convert to fraction form
   3,323,978/7,144,517 = 7,144,517/x
3. Step 3: Cross multiply
   3,323,978x = 7,144,517 × 7,144,517
4. Step 4: Simplify right side
   3,323,978x = 51,044,123,163,289
5. Step 5: Solve for x
   x = 51,044,123,163,289/3,323,978
6. Step 6: Final answer
   x = 15,356,336.04