Finding the Third Proportional to 2,100,198 and 4,580,524

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,198 : 4,580,524 = 4,580,524 : x
2. Step 2: Convert to fraction form
   2,100,198/4,580,524 = 4,580,524/x
3. Step 3: Cross multiply
   2,100,198x = 4,580,524 × 4,580,524
4. Step 4: Simplify right side
   2,100,198x = 20,981,200,114,576
5. Step 5: Solve for x
   x = 20,981,200,114,576/2,100,198
6. Step 6: Final answer
   x = 9,990,105.75