Finding the Third Proportional to 12,479.50 and 17,099

Step by Step Solution

1. Step 1: Write the proportion equation
   12,479.50 : 17,099 = 17,099 : x
2. Step 2: Convert to fraction form
   12,479.50/17,099 = 17,099/x
3. Step 3: Cross multiply
   12,479.50x = 17,099 × 17,099
4. Step 4: Simplify right side
   12,479.50x = 292,375,801
5. Step 5: Solve for x
   x = 292,375,801/12,479.50
6. Step 6: Final answer
   x = 23,428.49