Finding the Third Proportional to 20,826 and 30,686

Step by Step Solution

1. Step 1: Write the proportion equation
   20,826 : 30,686 = 30,686 : x
2. Step 2: Convert to fraction form
   20,826/30,686 = 30,686/x
3. Step 3: Cross multiply
   20,826x = 30,686 × 30,686
4. Step 4: Simplify right side
   20,826x = 941,630,596
5. Step 5: Solve for x
   x = 941,630,596/20,826
6. Step 6: Final answer
   x = 45,214.18