Finding the Third Proportional to 3,509,799 and 7,665,517

Step by Step Solution

1. Step 1: Write the proportion equation
   3,509,799 : 7,665,517 = 7,665,517 : x
2. Step 2: Convert to fraction form
   3,509,799/7,665,517 = 7,665,517/x
3. Step 3: Cross multiply
   3,509,799x = 7,665,517 × 7,665,517
4. Step 4: Simplify right side
   3,509,799x = 58,760,150,877,289
5. Step 5: Solve for x
   x = 58,760,150,877,289/3,509,799
6. Step 6: Final answer
   x = 16,741,742.44