Finding the Third Proportional to 3,086.44 and 4,777.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.44 : 4,777.31 = 4,777.31 : x
2. Step 2: Convert to fraction form
   3,086.44/4,777.31 = 4,777.31/x
3. Step 3: Cross multiply
   3,086.44x = 4,777.31 × 4,777.31
4. Step 4: Simplify right side
   3,086.44x = 22,822,714.72
5. Step 5: Solve for x
   x = 22,822,714.72/3,086.44
6. Step 6: Final answer
   x = 7,394.52