Finding the Third Proportional to 67,618 and 144,282

Step by Step Solution

1. Step 1: Write the proportion equation
   67,618 : 144,282 = 144,282 : x
2. Step 2: Convert to fraction form
   67,618/144,282 = 144,282/x
3. Step 3: Cross multiply
   67,618x = 144,282 × 144,282
4. Step 4: Simplify right side
   67,618x = 20,817,295,524
5. Step 5: Solve for x
   x = 20,817,295,524/67,618
6. Step 6: Final answer
   x = 307,866.18