Finding the Third Proportional to 30,704 and 68,320

Step by Step Solution

1. Step 1: Write the proportion equation
   30,704 : 68,320 = 68,320 : x
2. Step 2: Convert to fraction form
   30,704/68,320 = 68,320/x
3. Step 3: Cross multiply
   30,704x = 68,320 × 68,320
4. Step 4: Simplify right side
   30,704x = 4,667,622,400
5. Step 5: Solve for x
   x = 4,667,622,400/30,704
6. Step 6: Final answer
   x = 152,020.01