Finding the Third Proportional to 20,778 and 32,928

Step by Step Solution

1. Step 1: Write the proportion equation
   20,778 : 32,928 = 32,928 : x
2. Step 2: Convert to fraction form
   20,778/32,928 = 32,928/x
3. Step 3: Cross multiply
   20,778x = 32,928 × 32,928
4. Step 4: Simplify right side
   20,778x = 1,084,253,184
5. Step 5: Solve for x
   x = 1,084,253,184/20,778
6. Step 6: Final answer
   x = 52,182.75