Finding the Third Proportional to 109,212 and 173,656

Step by Step Solution

1. Step 1: Write the proportion equation
   109,212 : 173,656 = 173,656 : x
2. Step 2: Convert to fraction form
   109,212/173,656 = 173,656/x
3. Step 3: Cross multiply
   109,212x = 173,656 × 173,656
4. Step 4: Simplify right side
   109,212x = 30,156,406,336
5. Step 5: Solve for x
   x = 30,156,406,336/109,212
6. Step 6: Final answer
   x = 276,127.22