Finding the Third Proportional to 4,066,256 and 8,672,944

Step by Step Solution

1. Step 1: Write the proportion equation
   4,066,256 : 8,672,944 = 8,672,944 : x
2. Step 2: Convert to fraction form
   4,066,256/8,672,944 = 8,672,944/x
3. Step 3: Cross multiply
   4,066,256x = 8,672,944 × 8,672,944
4. Step 4: Simplify right side
   4,066,256x = 75,219,957,627,136
5. Step 5: Solve for x
   x = 75,219,957,627,136/4,066,256
6. Step 6: Final answer
   x = 18,498,578.95