Finding the Third Proportional to 17,684 and 19,340

Step by Step Solution

1. Step 1: Write the proportion equation
   17,684 : 19,340 = 19,340 : x
2. Step 2: Convert to fraction form
   17,684/19,340 = 19,340/x
3. Step 3: Cross multiply
   17,684x = 19,340 × 19,340
4. Step 4: Simplify right side
   17,684x = 374,035,600
5. Step 5: Solve for x
   x = 374,035,600/17,684
6. Step 6: Final answer
   x = 21,151.07