Finding the Third Proportional to 3.83 and 7.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3.83 : 7.71 = 7.71 : x
2. Step 2: Convert to fraction form
   3.83/7.71 = 7.71/x
3. Step 3: Cross multiply
   3.83x = 7.71 × 7.71
4. Step 4: Simplify right side
   3.83x = 59.48
5. Step 5: Solve for x
   x = 59.48/3.83
6. Step 6: Final answer
   x = 15.53