Finding the Third Proportional to 171,068 and 268,710

Step by Step Solution

1. Step 1: Write the proportion equation
   171,068 : 268,710 = 268,710 : x
2. Step 2: Convert to fraction form
   171,068/268,710 = 268,710/x
3. Step 3: Cross multiply
   171,068x = 268,710 × 268,710
4. Step 4: Simplify right side
   171,068x = 72,205,064,100
5. Step 5: Solve for x
   x = 72,205,064,100/171,068
6. Step 6: Final answer
   x = 422,083.99