Finding the Third Proportional to 145,164 and 228,116

Step by Step Solution

1. Step 1: Write the proportion equation
   145,164 : 228,116 = 228,116 : x
2. Step 2: Convert to fraction form
   145,164/228,116 = 228,116/x
3. Step 3: Cross multiply
   145,164x = 228,116 × 228,116
4. Step 4: Simplify right side
   145,164x = 52,036,909,456
5. Step 5: Solve for x
   x = 52,036,909,456/145,164
6. Step 6: Final answer
   x = 358,469.80