Finding the Third Proportional to 2,198,400 and 4,821,888

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198,400 : 4,821,888 = 4,821,888 : x
2. Step 2: Convert to fraction form
   2,198,400/4,821,888 = 4,821,888/x
3. Step 3: Cross multiply
   2,198,400x = 4,821,888 × 4,821,888
4. Step 4: Simplify right side
   2,198,400x = 23,250,603,884,544
5. Step 5: Solve for x
   x = 23,250,603,884,544/2,198,400
6. Step 6: Final answer
   x = 10,576,148.06