Finding the Third Proportional to 70.69 and 144.56

Step by Step Solution

1. Step 1: Write the proportion equation
   70.69 : 144.56 = 144.56 : x
2. Step 2: Convert to fraction form
   70.69/144.56 = 144.56/x
3. Step 3: Cross multiply
   70.69x = 144.56 × 144.56
4. Step 4: Simplify right side
   70.69x = 20,898.32
5. Step 5: Solve for x
   x = 20,898.32/70.69
6. Step 6: Final answer
   x = 295.64