Finding the Third Proportional to 144,468 and 156,678

Step by Step Solution

1. Step 1: Write the proportion equation
   144,468 : 156,678 = 156,678 : x
2. Step 2: Convert to fraction form
   144,468/156,678 = 156,678/x
3. Step 3: Cross multiply
   144,468x = 156,678 × 156,678
4. Step 4: Simplify right side
   144,468x = 24,547,995,684
5. Step 5: Solve for x
   x = 24,547,995,684/144,468
6. Step 6: Final answer
   x = 169,919.95