Finding the Third Proportional to 3,561,204 and 8,398,234

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561,204 : 8,398,234 = 8,398,234 : x
2. Step 2: Convert to fraction form
   3,561,204/8,398,234 = 8,398,234/x
3. Step 3: Cross multiply
   3,561,204x = 8,398,234 × 8,398,234
4. Step 4: Simplify right side
   3,561,204x = 70,530,334,318,756
5. Step 5: Solve for x
   x = 70,530,334,318,756/3,561,204
6. Step 6: Final answer
   x = 19,805,193.50