Finding the Third Proportional to 11,609.89 and 18,068.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,609.89 : 18,068.38 = 18,068.38 : x
2. Step 2: Convert to fraction form
   11,609.89/18,068.38 = 18,068.38/x
3. Step 3: Cross multiply
   11,609.89x = 18,068.38 × 18,068.38
4. Step 4: Simplify right side
   11,609.89x = 326,466,316.30
5. Step 5: Solve for x
   x = 326,466,316.30/11,609.89
6. Step 6: Final answer
   x = 28,119.66