Finding the Third Proportional to 3,420,144 and 7,226,496

Step by Step Solution

1. Step 1: Write the proportion equation
   3,420,144 : 7,226,496 = 7,226,496 : x
2. Step 2: Convert to fraction form
   3,420,144/7,226,496 = 7,226,496/x
3. Step 3: Cross multiply
   3,420,144x = 7,226,496 × 7,226,496
4. Step 4: Simplify right side
   3,420,144x = 52,222,244,438,016
5. Step 5: Solve for x
   x = 52,222,244,438,016/3,420,144
6. Step 6: Final answer
   x = 15,269,019.21