Finding the Third Proportional to 109,210 and 173,651

Step by Step Solution

1. Step 1: Write the proportion equation
   109,210 : 173,651 = 173,651 : x
2. Step 2: Convert to fraction form
   109,210/173,651 = 173,651/x
3. Step 3: Cross multiply
   109,210x = 173,651 × 173,651
4. Step 4: Simplify right side
   109,210x = 30,154,669,801
5. Step 5: Solve for x
   x = 30,154,669,801/109,210
6. Step 6: Final answer
   x = 276,116.38