Finding the Third Proportional to 67,066 and 144,670

Step by Step Solution

1. Step 1: Write the proportion equation
   67,066 : 144,670 = 144,670 : x
2. Step 2: Convert to fraction form
   67,066/144,670 = 144,670/x
3. Step 3: Cross multiply
   67,066x = 144,670 × 144,670
4. Step 4: Simplify right side
   67,066x = 20,929,408,900
5. Step 5: Solve for x
   x = 20,929,408,900/67,066
6. Step 6: Final answer
   x = 312,071.82