Finding the Third Proportional to 67,622 and 144,290

Step by Step Solution

1. Step 1: Write the proportion equation
   67,622 : 144,290 = 144,290 : x
2. Step 2: Convert to fraction form
   67,622/144,290 = 144,290/x
3. Step 3: Cross multiply
   67,622x = 144,290 × 144,290
4. Step 4: Simplify right side
   67,622x = 20,819,604,100
5. Step 5: Solve for x
   x = 20,819,604,100/67,622
6. Step 6: Final answer
   x = 307,882.11