Finding the Third Proportional to 3,981,256 and 8,483,990

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981,256 : 8,483,990 = 8,483,990 : x
2. Step 2: Convert to fraction form
   3,981,256/8,483,990 = 8,483,990/x
3. Step 3: Cross multiply
   3,981,256x = 8,483,990 × 8,483,990
4. Step 4: Simplify right side
   3,981,256x = 71,978,086,320,100
5. Step 5: Solve for x
   x = 71,978,086,320,100/3,981,256
6. Step 6: Final answer
   x = 18,079,240.90