Finding the Third Proportional to 12,778 and 28,016

Step by Step Solution

1. Step 1: Write the proportion equation
   12,778 : 28,016 = 28,016 : x
2. Step 2: Convert to fraction form
   12,778/28,016 = 28,016/x
3. Step 3: Cross multiply
   12,778x = 28,016 × 28,016
4. Step 4: Simplify right side
   12,778x = 784,896,256
5. Step 5: Solve for x
   x = 784,896,256/12,778
6. Step 6: Final answer
   x = 61,425.60