Finding the Third Proportional to 30,707 and 67,259

Step by Step Solution

1. Step 1: Write the proportion equation
   30,707 : 67,259 = 67,259 : x
2. Step 2: Convert to fraction form
   30,707/67,259 = 67,259/x
3. Step 3: Cross multiply
   30,707x = 67,259 × 67,259
4. Step 4: Simplify right side
   30,707x = 4,523,773,081
5. Step 5: Solve for x
   x = 4,523,773,081/30,707
6. Step 6: Final answer
   x = 147,320.58