Finding the Third Proportional to 2,739.78 and 5,992.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,739.78 : 5,992.09 = 5,992.09 : x
2. Step 2: Convert to fraction form
   2,739.78/5,992.09 = 5,992.09/x
3. Step 3: Cross multiply
   2,739.78x = 5,992.09 × 5,992.09
4. Step 4: Simplify right side
   2,739.78x = 35,905,187.51
5. Step 5: Solve for x
   x = 35,905,187.51/2,739.78
6. Step 6: Final answer
   x = 13,105.13