Finding the Third Proportional to 143.06 and 302.06

Step by Step Solution

1. Step 1: Write the proportion equation
   143.06 : 302.06 = 302.06 : x
2. Step 2: Convert to fraction form
   143.06/302.06 = 302.06/x
3. Step 3: Cross multiply
   143.06x = 302.06 × 302.06
4. Step 4: Simplify right side
   143.06x = 91,241.75
5. Step 5: Solve for x
   x = 91,241.75/143.06
6. Step 6: Final answer
   x = 637.78