Finding the Third Proportional to 9,800 and 13,340

Step by Step Solution

1. Step 1: Write the proportion equation
   9,800 : 13,340 = 13,340 : x
2. Step 2: Convert to fraction form
   9,800/13,340 = 13,340/x
3. Step 3: Cross multiply
   9,800x = 13,340 × 13,340
4. Step 4: Simplify right side
   9,800x = 177,955,600
5. Step 5: Solve for x
   x = 177,955,600/9,800
6. Step 6: Final answer
   x = 18,158.73