Finding the Third Proportional to 67,911 and 144,570

Step by Step Solution

1. Step 1: Write the proportion equation
   67,911 : 144,570 = 144,570 : x
2. Step 2: Convert to fraction form
   67,911/144,570 = 144,570/x
3. Step 3: Cross multiply
   67,911x = 144,570 × 144,570
4. Step 4: Simplify right side
   67,911x = 20,900,484,900
5. Step 5: Solve for x
   x = 20,900,484,900/67,911
6. Step 6: Final answer
   x = 307,762.88