Finding the Third Proportional to 12,556.50 and 17,217.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,556.50 : 17,217.38 = 17,217.38 : x
2. Step 2: Convert to fraction form
   12,556.50/17,217.38 = 17,217.38/x
3. Step 3: Cross multiply
   12,556.50x = 17,217.38 × 17,217.38
4. Step 4: Simplify right side
   12,556.50x = 296,438,001.89
5. Step 5: Solve for x
   x = 296,438,001.89/12,556.50
6. Step 6: Final answer
   x = 23,608.33