Finding the Third Proportional to 34.69 and 55.31

Step by Step Solution

1. Step 1: Write the proportion equation
   34.69 : 55.31 = 55.31 : x
2. Step 2: Convert to fraction form
   34.69/55.31 = 55.31/x
3. Step 3: Cross multiply
   34.69x = 55.31 × 55.31
4. Step 4: Simplify right side
   34.69x = 3,059.47
5. Step 5: Solve for x
   x = 3,059.47/34.69
6. Step 6: Final answer
   x = 88.20