Finding the Third Proportional to 12,091.88 and 18,684.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,091.88 : 18,684.38 = 18,684.38 : x
2. Step 2: Convert to fraction form
   12,091.88/18,684.38 = 18,684.38/x
3. Step 3: Cross multiply
   12,091.88x = 18,684.38 × 18,684.38
4. Step 4: Simplify right side
   12,091.88x = 349,105,869.14
5. Step 5: Solve for x
   x = 349,105,869.14/12,091.88
6. Step 6: Final answer
   x = 28,871.11