Finding the Third Proportional to 28.56 and 59.31

Step by Step Solution

1. Step 1: Write the proportion equation
   28.56 : 59.31 = 59.31 : x
2. Step 2: Convert to fraction form
   28.56/59.31 = 59.31/x
3. Step 3: Cross multiply
   28.56x = 59.31 × 59.31
4. Step 4: Simplify right side
   28.56x = 3,517.97
5. Step 5: Solve for x
   x = 3,517.97/28.56
6. Step 6: Final answer
   x = 123.17