Finding the Third Proportional to 67,282 and 145,616

Step by Step Solution

1. Step 1: Write the proportion equation
   67,282 : 145,616 = 145,616 : x
2. Step 2: Convert to fraction form
   67,282/145,616 = 145,616/x
3. Step 3: Cross multiply
   67,282x = 145,616 × 145,616
4. Step 4: Simplify right side
   67,282x = 21,204,019,456
5. Step 5: Solve for x
   x = 21,204,019,456/67,282
6. Step 6: Final answer
   x = 315,151.44