Finding the Third Proportional to 67,662 and 145,404

Step by Step Solution

1. Step 1: Write the proportion equation
   67,662 : 145,404 = 145,404 : x
2. Step 2: Convert to fraction form
   67,662/145,404 = 145,404/x
3. Step 3: Cross multiply
   67,662x = 145,404 × 145,404
4. Step 4: Simplify right side
   67,662x = 21,142,323,216
5. Step 5: Solve for x
   x = 21,142,323,216/67,662
6. Step 6: Final answer
   x = 312,469.68