Finding the Third Proportional to 3,388,544 and 7,440,640

Step by Step Solution

1. Step 1: Write the proportion equation
   3,388,544 : 7,440,640 = 7,440,640 : x
2. Step 2: Convert to fraction form
   3,388,544/7,440,640 = 7,440,640/x
3. Step 3: Cross multiply
   3,388,544x = 7,440,640 × 7,440,640
4. Step 4: Simplify right side
   3,388,544x = 55,363,123,609,600
5. Step 5: Solve for x
   x = 55,363,123,609,600/3,388,544
6. Step 6: Final answer
   x = 16,338,322.18