Finding the Third Proportional to 9,600 and 19,800

Step by Step Solution

1. Step 1: Write the proportion equation
   9,600 : 19,800 = 19,800 : x
2. Step 2: Convert to fraction form
   9,600/19,800 = 19,800/x
3. Step 3: Cross multiply
   9,600x = 19,800 × 19,800
4. Step 4: Simplify right side
   9,600x = 392,040,000
5. Step 5: Solve for x
   x = 392,040,000/9,600
6. Step 6: Final answer
   x = 40,837.50