Finding the Third Proportional to 12,109.50 and 18,225

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.50 : 18,225 = 18,225 : x
2. Step 2: Convert to fraction form
   12,109.50/18,225 = 18,225/x
3. Step 3: Cross multiply
   12,109.50x = 18,225 × 18,225
4. Step 4: Simplify right side
   12,109.50x = 332,150,625
5. Step 5: Solve for x
   x = 332,150,625/12,109.50
6. Step 6: Final answer
   x = 27,428.93