Finding the Third Proportional to 17,939.25 and 39,279.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,939.25 : 39,279.38 = 39,279.38 : x
2. Step 2: Convert to fraction form
   17,939.25/39,279.38 = 39,279.38/x
3. Step 3: Cross multiply
   17,939.25x = 39,279.38 × 39,279.38
4. Step 4: Simplify right side
   17,939.25x = 1,542,869,300.39
5. Step 5: Solve for x
   x = 1,542,869,300.39/17,939.25
6. Step 6: Final answer
   x = 86,005.23