Finding the Third Proportional to 1,548,780 and 3,321,661

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548,780 : 3,321,661 = 3,321,661 : x
2. Step 2: Convert to fraction form
   1,548,780/3,321,661 = 3,321,661/x
3. Step 3: Cross multiply
   1,548,780x = 3,321,661 × 3,321,661
4. Step 4: Simplify right side
   1,548,780x = 11,033,431,798,921
5. Step 5: Solve for x
   x = 11,033,431,798,921/1,548,780
6. Step 6: Final answer
   x = 7,123,950.33