Finding the Third Proportional to 3,639,966 and 7,995,507

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639,966 : 7,995,507 = 7,995,507 : x
2. Step 2: Convert to fraction form
   3,639,966/7,995,507 = 7,995,507/x
3. Step 3: Cross multiply
   3,639,966x = 7,995,507 × 7,995,507
4. Step 4: Simplify right side
   3,639,966x = 63,928,132,187,049
5. Step 5: Solve for x
   x = 63,928,132,187,049/3,639,966
6. Step 6: Final answer
   x = 17,562,837.73