Finding the Third Proportional to 12,117.09 and 18,716.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,117.09 : 18,716.06 = 18,716.06 : x
2. Step 2: Convert to fraction form
   12,117.09/18,716.06 = 18,716.06/x
3. Step 3: Cross multiply
   12,117.09x = 18,716.06 × 18,716.06
4. Step 4: Simplify right side
   12,117.09x = 350,290,995.50
5. Step 5: Solve for x
   x = 350,290,995.50/12,117.09
6. Step 6: Final answer
   x = 28,908.83