Finding the Third Proportional to 8,326 and 17,421.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,326 : 17,421.50 = 17,421.50 : x
2. Step 2: Convert to fraction form
   8,326/17,421.50 = 17,421.50/x
3. Step 3: Cross multiply
   8,326x = 17,421.50 × 17,421.50
4. Step 4: Simplify right side
   8,326x = 303,508,662.25
5. Step 5: Solve for x
   x = 303,508,662.25/8,326
6. Step 6: Final answer
   x = 36,453.12