Finding the Third Proportional to 123,061 and 268,899

Step by Step Solution

1. Step 1: Write the proportion equation
   123,061 : 268,899 = 268,899 : x
2. Step 2: Convert to fraction form
   123,061/268,899 = 268,899/x
3. Step 3: Cross multiply
   123,061x = 268,899 × 268,899
4. Step 4: Simplify right side
   123,061x = 72,306,672,201
5. Step 5: Solve for x
   x = 72,306,672,201/123,061
6. Step 6: Final answer
   x = 587,567.73