Finding the Third Proportional to 70.75 and 154.31

Step by Step Solution

1. Step 1: Write the proportion equation
   70.75 : 154.31 = 154.31 : x
2. Step 2: Convert to fraction form
   70.75/154.31 = 154.31/x
3. Step 3: Cross multiply
   70.75x = 154.31 × 154.31
4. Step 4: Simplify right side
   70.75x = 23,810.77
5. Step 5: Solve for x
   x = 23,810.77/70.75
6. Step 6: Final answer
   x = 336.56