Finding the Third Proportional to 2,776.78 and 3,072.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.78 : 3,072.94 = 3,072.94 : x
2. Step 2: Convert to fraction form
   2,776.78/3,072.94 = 3,072.94/x
3. Step 3: Cross multiply
   2,776.78x = 3,072.94 × 3,072.94
4. Step 4: Simplify right side
   2,776.78x = 9,442,944.88
5. Step 5: Solve for x
   x = 9,442,944.88/2,776.78
6. Step 6: Final answer
   x = 3,400.68