Finding the Third Proportional to 153.33 and 231.89

Step by Step Solution

1. Step 1: Write the proportion equation
   153.33 : 231.89 = 231.89 : x
2. Step 2: Convert to fraction form
   153.33/231.89 = 231.89/x
3. Step 3: Cross multiply
   153.33x = 231.89 × 231.89
4. Step 4: Simplify right side
   153.33x = 53,773.26
5. Step 5: Solve for x
   x = 53,773.26/153.33
6. Step 6: Final answer
   x = 350.71