Finding the Third Proportional to 20,434.78 and 27,736.17

Step by Step Solution

1. Step 1: Write the proportion equation
   20,434.78 : 27,736.17 = 27,736.17 : x
2. Step 2: Convert to fraction form
   20,434.78/27,736.17 = 27,736.17/x
3. Step 3: Cross multiply
   20,434.78x = 27,736.17 × 27,736.17
4. Step 4: Simplify right side
   20,434.78x = 769,295,230.28
5. Step 5: Solve for x
   x = 769,295,230.28/20,434.78
6. Step 6: Final answer
   x = 37,646.36