Finding the Third Proportional to 5,451,574 and 8,404,800

Step by Step Solution

1. Step 1: Write the proportion equation
   5,451,574 : 8,404,800 = 8,404,800 : x
2. Step 2: Convert to fraction form
   5,451,574/8,404,800 = 8,404,800/x
3. Step 3: Cross multiply
   5,451,574x = 8,404,800 × 8,404,800
4. Step 4: Simplify right side
   5,451,574x = 70,640,663,040,000
5. Step 5: Solve for x
   x = 70,640,663,040,000/5,451,574
6. Step 6: Final answer
   x = 12,957,847.23