Finding the Third Proportional to 67,900 and 144,560

Step by Step Solution

1. Step 1: Write the proportion equation
   67,900 : 144,560 = 144,560 : x
2. Step 2: Convert to fraction form
   67,900/144,560 = 144,560/x
3. Step 3: Cross multiply
   67,900x = 144,560 × 144,560
4. Step 4: Simplify right side
   67,900x = 20,897,593,600
5. Step 5: Solve for x
   x = 20,897,593,600/67,900
6. Step 6: Final answer
   x = 307,770.16