Finding the Third Proportional to 68,401 and 109,274

Step by Step Solution

1. Step 1: Write the proportion equation
   68,401 : 109,274 = 109,274 : x
2. Step 2: Convert to fraction form
   68,401/109,274 = 109,274/x
3. Step 3: Cross multiply
   68,401x = 109,274 × 109,274
4. Step 4: Simplify right side
   68,401x = 11,940,807,076
5. Step 5: Solve for x
   x = 11,940,807,076/68,401
6. Step 6: Final answer
   x = 174,570.65