Finding the Third Proportional to 67,855 and 144,729

Step by Step Solution

1. Step 1: Write the proportion equation
   67,855 : 144,729 = 144,729 : x
2. Step 2: Convert to fraction form
   67,855/144,729 = 144,729/x
3. Step 3: Cross multiply
   67,855x = 144,729 × 144,729
4. Step 4: Simplify right side
   67,855x = 20,946,483,441
5. Step 5: Solve for x
   x = 20,946,483,441/67,855
6. Step 6: Final answer
   x = 308,694.77