Finding the Third Proportional to 30,708 and 67,248

Step by Step Solution

1. Step 1: Write the proportion equation
   30,708 : 67,248 = 67,248 : x
2. Step 2: Convert to fraction form
   30,708/67,248 = 67,248/x
3. Step 3: Cross multiply
   30,708x = 67,248 × 67,248
4. Step 4: Simplify right side
   30,708x = 4,522,293,504
5. Step 5: Solve for x
   x = 4,522,293,504/30,708
6. Step 6: Final answer
   x = 147,267.60