Finding the Third Proportional to 1,421,568 and 3,355,812

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,568 : 3,355,812 = 3,355,812 : x
2. Step 2: Convert to fraction form
   1,421,568/3,355,812 = 3,355,812/x
3. Step 3: Cross multiply
   1,421,568x = 3,355,812 × 3,355,812
4. Step 4: Simplify right side
   1,421,568x = 11,261,474,179,344
5. Step 5: Solve for x
   x = 11,261,474,179,344/1,421,568
6. Step 6: Final answer
   x = 7,921,868.09