Finding the Third Proportional to 12,087.75 and 18,479.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,087.75 : 18,479.06 = 18,479.06 : x
2. Step 2: Convert to fraction form
   12,087.75/18,479.06 = 18,479.06/x
3. Step 3: Cross multiply
   12,087.75x = 18,479.06 × 18,479.06
4. Step 4: Simplify right side
   12,087.75x = 341,475,750.88
5. Step 5: Solve for x
   x = 341,475,750.88/12,087.75
6. Step 6: Final answer
   x = 28,249.74