Finding the Third Proportional to 111,520 and 228,472

Step by Step Solution

1. Step 1: Write the proportion equation
   111,520 : 228,472 = 228,472 : x
2. Step 2: Convert to fraction form
   111,520/228,472 = 228,472/x
3. Step 3: Cross multiply
   111,520x = 228,472 × 228,472
4. Step 4: Simplify right side
   111,520x = 52,199,454,784
5. Step 5: Solve for x
   x = 52,199,454,784/111,520
6. Step 6: Final answer
   x = 468,072.59