Finding the Third Proportional to 105,490 and 227,472

Step by Step Solution

1. Step 1: Write the proportion equation
   105,490 : 227,472 = 227,472 : x
2. Step 2: Convert to fraction form
   105,490/227,472 = 227,472/x
3. Step 3: Cross multiply
   105,490x = 227,472 × 227,472
4. Step 4: Simplify right side
   105,490x = 51,743,510,784
5. Step 5: Solve for x
   x = 51,743,510,784/105,490
6. Step 6: Final answer
   x = 490,506.31