Finding the Third Proportional to 34.50 and 73.31

Step by Step Solution

1. Step 1: Write the proportion equation
   34.50 : 73.31 = 73.31 : x
2. Step 2: Convert to fraction form
   34.50/73.31 = 73.31/x
3. Step 3: Cross multiply
   34.50x = 73.31 × 73.31
4. Step 4: Simplify right side
   34.50x = 5,374.72
5. Step 5: Solve for x
   x = 5,374.72/34.50
6. Step 6: Final answer
   x = 155.79