Finding the Third Proportional to 8,389,372 and 18,379,404

Step by Step Solution

1. Step 1: Write the proportion equation
   8,389,372 : 18,379,404 = 18,379,404 : x
2. Step 2: Convert to fraction form
   8,389,372/18,379,404 = 18,379,404/x
3. Step 3: Cross multiply
   8,389,372x = 18,379,404 × 18,379,404
4. Step 4: Simplify right side
   8,389,372x = 337,802,491,395,216
5. Step 5: Solve for x
   x = 337,802,491,395,216/8,389,372
6. Step 6: Final answer
   x = 40,265,527.79