Finding the Third Proportional to 12,880 and 17,248

Step by Step Solution

1. Step 1: Write the proportion equation
   12,880 : 17,248 = 17,248 : x
2. Step 2: Convert to fraction form
   12,880/17,248 = 17,248/x
3. Step 3: Cross multiply
   12,880x = 17,248 × 17,248
4. Step 4: Simplify right side
   12,880x = 297,493,504
5. Step 5: Solve for x
   x = 297,493,504/12,880
6. Step 6: Final answer
   x = 23,097.32