Finding the Third Proportional to 11,412 and 17,939.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,412 : 17,939.25 = 17,939.25 : x
2. Step 2: Convert to fraction form
   11,412/17,939.25 = 17,939.25/x
3. Step 3: Cross multiply
   11,412x = 17,939.25 × 17,939.25
4. Step 4: Simplify right side
   11,412x = 321,816,690.56
5. Step 5: Solve for x
   x = 321,816,690.56/11,412
6. Step 6: Final answer
   x = 28,199.85