Finding the Third Proportional to 67,176 and 142,344

Step by Step Solution

1. Step 1: Write the proportion equation
   67,176 : 142,344 = 142,344 : x
2. Step 2: Convert to fraction form
   67,176/142,344 = 142,344/x
3. Step 3: Cross multiply
   67,176x = 142,344 × 142,344
4. Step 4: Simplify right side
   67,176x = 20,261,814,336
5. Step 5: Solve for x
   x = 20,261,814,336/67,176
6. Step 6: Final answer
   x = 301,622.82