Finding the Third Proportional to 269,696 and 388,472

Step by Step Solution

1. Step 1: Write the proportion equation
   269,696 : 388,472 = 388,472 : x
2. Step 2: Convert to fraction form
   269,696/388,472 = 388,472/x
3. Step 3: Cross multiply
   269,696x = 388,472 × 388,472
4. Step 4: Simplify right side
   269,696x = 150,910,494,784
5. Step 5: Solve for x
   x = 150,910,494,784/269,696
6. Step 6: Final answer
   x = 559,557.78