Finding the Third Proportional to 109,366 and 171,338

Step by Step Solution

1. Step 1: Write the proportion equation
   109,366 : 171,338 = 171,338 : x
2. Step 2: Convert to fraction form
   109,366/171,338 = 171,338/x
3. Step 3: Cross multiply
   109,366x = 171,338 × 171,338
4. Step 4: Simplify right side
   109,366x = 29,356,710,244
5. Step 5: Solve for x
   x = 29,356,710,244/109,366
6. Step 6: Final answer
   x = 268,426.30