Finding the Third Proportional to 3,920,612 and 8,441,936

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,612 : 8,441,936 = 8,441,936 : x
2. Step 2: Convert to fraction form
   3,920,612/8,441,936 = 8,441,936/x
3. Step 3: Cross multiply
   3,920,612x = 8,441,936 × 8,441,936
4. Step 4: Simplify right side
   3,920,612x = 71,266,283,428,096
5. Step 5: Solve for x
   x = 71,266,283,428,096/3,920,612
6. Step 6: Final answer
   x = 18,177,336.45