Finding the Third Proportional to 17,992.13 and 39,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,992.13 : 39,379.50 = 39,379.50 : x
2. Step 2: Convert to fraction form
   17,992.13/39,379.50 = 39,379.50/x
3. Step 3: Cross multiply
   17,992.13x = 39,379.50 × 39,379.50
4. Step 4: Simplify right side
   17,992.13x = 1,550,745,020.25
5. Step 5: Solve for x
   x = 1,550,745,020.25/17,992.13
6. Step 6: Final answer
   x = 86,190.21