Finding the Third Proportional to 111,905.50 and 228,980

Step by Step Solution

1. Step 1: Write the proportion equation
   111,905.50 : 228,980 = 228,980 : x
2. Step 2: Convert to fraction form
   111,905.50/228,980 = 228,980/x
3. Step 3: Cross multiply
   111,905.50x = 228,980 × 228,980
4. Step 4: Simplify right side
   111,905.50x = 52,431,840,400
5. Step 5: Solve for x
   x = 52,431,840,400/111,905.50
6. Step 6: Final answer
   x = 468,536.76