Finding the Third Proportional to 123,305 and 269,440

Step by Step Solution

1. Step 1: Write the proportion equation
   123,305 : 269,440 = 269,440 : x
2. Step 2: Convert to fraction form
   123,305/269,440 = 269,440/x
3. Step 3: Cross multiply
   123,305x = 269,440 × 269,440
4. Step 4: Simplify right side
   123,305x = 72,597,913,600
5. Step 5: Solve for x
   x = 72,597,913,600/123,305
6. Step 6: Final answer
   x = 588,766.99