Finding the Third Proportional to 20,067.75 and 36,991.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,067.75 : 36,991.69 = 36,991.69 : x
2. Step 2: Convert to fraction form
   20,067.75/36,991.69 = 36,991.69/x
3. Step 3: Cross multiply
   20,067.75x = 36,991.69 × 36,991.69
4. Step 4: Simplify right side
   20,067.75x = 1,368,384,944.10
5. Step 5: Solve for x
   x = 1,368,384,944.10/20,067.75
6. Step 6: Final answer
   x = 68,188.26