Finding the Third Proportional to 111,912 and 228,995

Step by Step Solution

1. Step 1: Write the proportion equation
   111,912 : 228,995 = 228,995 : x
2. Step 2: Convert to fraction form
   111,912/228,995 = 228,995/x
3. Step 3: Cross multiply
   111,912x = 228,995 × 228,995
4. Step 4: Simplify right side
   111,912x = 52,438,710,025
5. Step 5: Solve for x
   x = 52,438,710,025/111,912
6. Step 6: Final answer
   x = 468,570.93