Finding the Third Proportional to 67,256 and 144,776

Step by Step Solution

1. Step 1: Write the proportion equation
   67,256 : 144,776 = 144,776 : x
2. Step 2: Convert to fraction form
   67,256/144,776 = 144,776/x
3. Step 3: Cross multiply
   67,256x = 144,776 × 144,776
4. Step 4: Simplify right side
   67,256x = 20,960,090,176
5. Step 5: Solve for x
   x = 20,960,090,176/67,256
6. Step 6: Final answer
   x = 311,646.40