Finding the Third Proportional to 3,018.50 and 7,271

Step by Step Solution

1. Step 1: Write the proportion equation
   3,018.50 : 7,271 = 7,271 : x
2. Step 2: Convert to fraction form
   3,018.50/7,271 = 7,271/x
3. Step 3: Cross multiply
   3,018.50x = 7,271 × 7,271
4. Step 4: Simplify right side
   3,018.50x = 52,867,441
5. Step 5: Solve for x
   x = 52,867,441/3,018.50
6. Step 6: Final answer
   x = 17,514.47