Finding the Third Proportional to 3,394,564 and 7,320,569

Step by Step Solution

1. Step 1: Write the proportion equation
   3,394,564 : 7,320,569 = 7,320,569 : x
2. Step 2: Convert to fraction form
   3,394,564/7,320,569 = 7,320,569/x
3. Step 3: Cross multiply
   3,394,564x = 7,320,569 × 7,320,569
4. Step 4: Simplify right side
   3,394,564x = 53,590,730,483,761
5. Step 5: Solve for x
   x = 53,590,730,483,761/3,394,564
6. Step 6: Final answer
   x = 15,787,220.53