Finding the Third Proportional to 2,768.63 and 3,877.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.63 : 3,877.31 = 3,877.31 : x
2. Step 2: Convert to fraction form
   2,768.63/3,877.31 = 3,877.31/x
3. Step 3: Cross multiply
   2,768.63x = 3,877.31 × 3,877.31
4. Step 4: Simplify right side
   2,768.63x = 15,033,552.22
5. Step 5: Solve for x
   x = 15,033,552.22/2,768.63
6. Step 6: Final answer
   x = 5,429.97