Finding the Third Proportional to 12,089.25 and 18,987.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,089.25 : 18,987.75 = 18,987.75 : x
2. Step 2: Convert to fraction form
   12,089.25/18,987.75 = 18,987.75/x
3. Step 3: Cross multiply
   12,089.25x = 18,987.75 × 18,987.75
4. Step 4: Simplify right side
   12,089.25x = 360,534,650.06
5. Step 5: Solve for x
   x = 360,534,650.06/12,089.25
6. Step 6: Final answer
   x = 29,822.75