Finding the Third Proportional to 3,394,557 and 7,320,555

Step by Step Solution

1. Step 1: Write the proportion equation
   3,394,557 : 7,320,555 = 7,320,555 : x
2. Step 2: Convert to fraction form
   3,394,557/7,320,555 = 7,320,555/x
3. Step 3: Cross multiply
   3,394,557x = 7,320,555 × 7,320,555
4. Step 4: Simplify right side
   3,394,557x = 53,590,525,508,025
5. Step 5: Solve for x
   x = 53,590,525,508,025/3,394,557
6. Step 6: Final answer
   x = 15,787,192.71