Finding the Third Proportional to 67,239 and 144,852

Step by Step Solution

1. Step 1: Write the proportion equation
   67,239 : 144,852 = 144,852 : x
2. Step 2: Convert to fraction form
   67,239/144,852 = 144,852/x
3. Step 3: Cross multiply
   67,239x = 144,852 × 144,852
4. Step 4: Simplify right side
   67,239x = 20,982,101,904
5. Step 5: Solve for x
   x = 20,982,101,904/67,239
6. Step 6: Final answer
   x = 312,052.56