Finding the Third Proportional to 30,618 and 67,250

Step by Step Solution

1. Step 1: Write the proportion equation
   30,618 : 67,250 = 67,250 : x
2. Step 2: Convert to fraction form
   30,618/67,250 = 67,250/x
3. Step 3: Cross multiply
   30,618x = 67,250 × 67,250
4. Step 4: Simplify right side
   30,618x = 4,522,562,500
5. Step 5: Solve for x
   x = 4,522,562,500/30,618
6. Step 6: Final answer
   x = 147,709.27