Finding the Third Proportional to 3,420,635 and 7,436,665

Step by Step Solution

1. Step 1: Write the proportion equation
   3,420,635 : 7,436,665 = 7,436,665 : x
2. Step 2: Convert to fraction form
   3,420,635/7,436,665 = 7,436,665/x
3. Step 3: Cross multiply
   3,420,635x = 7,436,665 × 7,436,665
4. Step 4: Simplify right side
   3,420,635x = 55,303,986,322,225
5. Step 5: Solve for x
   x = 55,303,986,322,225/3,420,635
6. Step 6: Final answer
   x = 16,167,754.33