Finding the Third Proportional to 70.96 and 152.79

Step by Step Solution

1. Step 1: Write the proportion equation
   70.96 : 152.79 = 152.79 : x
2. Step 2: Convert to fraction form
   70.96/152.79 = 152.79/x
3. Step 3: Cross multiply
   70.96x = 152.79 × 152.79
4. Step 4: Simplify right side
   70.96x = 23,345.17
5. Step 5: Solve for x
   x = 23,345.17/70.96
6. Step 6: Final answer
   x = 328.99