Finding the Third Proportional to 3,321,605 and 7,263,571

Step by Step Solution

1. Step 1: Write the proportion equation
   3,321,605 : 7,263,571 = 7,263,571 : x
2. Step 2: Convert to fraction form
   3,321,605/7,263,571 = 7,263,571/x
3. Step 3: Cross multiply
   3,321,605x = 7,263,571 × 7,263,571
4. Step 4: Simplify right side
   3,321,605x = 52,759,463,672,041
5. Step 5: Solve for x
   x = 52,759,463,672,041/3,321,605
6. Step 6: Final answer
   x = 15,883,725.99