Finding the Third Proportional to 10,986.75 and 17,490.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,986.75 : 17,490.38 = 17,490.38 : x
2. Step 2: Convert to fraction form
   10,986.75/17,490.38 = 17,490.38/x
3. Step 3: Cross multiply
   10,986.75x = 17,490.38 × 17,490.38
4. Step 4: Simplify right side
   10,986.75x = 305,913,217.64
5. Step 5: Solve for x
   x = 305,913,217.64/10,986.75
6. Step 6: Final answer
   x = 27,843.83