Finding the Third Proportional to 3,321,570 and 5,423,778

Step by Step Solution

1. Step 1: Write the proportion equation
   3,321,570 : 5,423,778 = 5,423,778 : x
2. Step 2: Convert to fraction form
   3,321,570/5,423,778 = 5,423,778/x
3. Step 3: Cross multiply
   3,321,570x = 5,423,778 × 5,423,778
4. Step 4: Simplify right side
   3,321,570x = 29,417,367,793,284
5. Step 5: Solve for x
   x = 29,417,367,793,284/3,321,570
6. Step 6: Final answer
   x = 8,856,464.80