Finding the Third Proportional to 20,780 and 33,426

Step by Step Solution

1. Step 1: Write the proportion equation
   20,780 : 33,426 = 33,426 : x
2. Step 2: Convert to fraction form
   20,780/33,426 = 33,426/x
3. Step 3: Cross multiply
   20,780x = 33,426 × 33,426
4. Step 4: Simplify right side
   20,780x = 1,117,297,476
5. Step 5: Solve for x
   x = 1,117,297,476/20,780
6. Step 6: Final answer
   x = 53,767.92