Finding the Third Proportional to 123,636 and 269,940

Step by Step Solution

1. Step 1: Write the proportion equation
   123,636 : 269,940 = 269,940 : x
2. Step 2: Convert to fraction form
   123,636/269,940 = 269,940/x
3. Step 3: Cross multiply
   123,636x = 269,940 × 269,940
4. Step 4: Simplify right side
   123,636x = 72,867,603,600
5. Step 5: Solve for x
   x = 72,867,603,600/123,636
6. Step 6: Final answer
   x = 589,372.06