Finding the Third Proportional to 8,356.50 and 18,212.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,356.50 : 18,212.38 = 18,212.38 : x
2. Step 2: Convert to fraction form
   8,356.50/18,212.38 = 18,212.38/x
3. Step 3: Cross multiply
   8,356.50x = 18,212.38 × 18,212.38
4. Step 4: Simplify right side
   8,356.50x = 331,690,603.14
5. Step 5: Solve for x
   x = 331,690,603.14/8,356.50
6. Step 6: Final answer
   x = 39,692.53