Finding the Third Proportional to 123,211 and 268,535

Step by Step Solution

1. Step 1: Write the proportion equation
   123,211 : 268,535 = 268,535 : x
2. Step 2: Convert to fraction form
   123,211/268,535 = 268,535/x
3. Step 3: Cross multiply
   123,211x = 268,535 × 268,535
4. Step 4: Simplify right side
   123,211x = 72,111,046,225
5. Step 5: Solve for x
   x = 72,111,046,225/123,211
6. Step 6: Final answer
   x = 585,264.68