Finding the Third Proportional to 8,718.50 and 17,900

Step by Step Solution

1. Step 1: Write the proportion equation
   8,718.50 : 17,900 = 17,900 : x
2. Step 2: Convert to fraction form
   8,718.50/17,900 = 17,900/x
3. Step 3: Cross multiply
   8,718.50x = 17,900 × 17,900
4. Step 4: Simplify right side
   8,718.50x = 320,410,000
5. Step 5: Solve for x
   x = 320,410,000/8,718.50
6. Step 6: Final answer
   x = 36,750.59