Finding the Third Proportional to 155,124 and 228,123

Step by Step Solution

1. Step 1: Write the proportion equation
   155,124 : 228,123 = 228,123 : x
2. Step 2: Convert to fraction form
   155,124/228,123 = 228,123/x
3. Step 3: Cross multiply
   155,124x = 228,123 × 228,123
4. Step 4: Simplify right side
   155,124x = 52,040,103,129
5. Step 5: Solve for x
   x = 52,040,103,129/155,124
6. Step 6: Final answer
   x = 335,474.22