Finding the Third Proportional to 72.94 and 159.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72.94 : 159.31 = 159.31 : x
2. Step 2: Convert to fraction form
   72.94/159.31 = 159.31/x
3. Step 3: Cross multiply
   72.94x = 159.31 × 159.31
4. Step 4: Simplify right side
   72.94x = 25,380.47
5. Step 5: Solve for x
   x = 25,380.47/72.94
6. Step 6: Final answer
   x = 347.98