Finding the Third Proportional to 20,656.90 and 30,959.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,656.90 : 30,959.72 = 30,959.72 : x
2. Step 2: Convert to fraction form
   20,656.90/30,959.72 = 30,959.72/x
3. Step 3: Cross multiply
   20,656.90x = 30,959.72 × 30,959.72
4. Step 4: Simplify right side
   20,656.90x = 958,504,185.08
5. Step 5: Solve for x
   x = 958,504,185.08/20,656.90
6. Step 6: Final answer
   x = 46,401.17