Finding the Third Proportional to 64.97 and 141.43

Step by Step Solution

1. Step 1: Write the proportion equation
   64.97 : 141.43 = 141.43 : x
2. Step 2: Convert to fraction form
   64.97/141.43 = 141.43/x
3. Step 3: Cross multiply
   64.97x = 141.43 × 141.43
4. Step 4: Simplify right side
   64.97x = 20,003.46
5. Step 5: Solve for x
   x = 20,003.46/64.97
6. Step 6: Final answer
   x = 307.89