Finding the Third Proportional to 67,208 and 142,912

Step by Step Solution

1. Step 1: Write the proportion equation
   67,208 : 142,912 = 142,912 : x
2. Step 2: Convert to fraction form
   67,208/142,912 = 142,912/x
3. Step 3: Cross multiply
   67,208x = 142,912 × 142,912
4. Step 4: Simplify right side
   67,208x = 20,423,839,744
5. Step 5: Solve for x
   x = 20,423,839,744/67,208
6. Step 6: Final answer
   x = 303,890.01