Finding the Third Proportional to 151,778 and 228,156

Step by Step Solution

1. Step 1: Write the proportion equation
   151,778 : 228,156 = 228,156 : x
2. Step 2: Convert to fraction form
   151,778/228,156 = 228,156/x
3. Step 3: Cross multiply
   151,778x = 228,156 × 228,156
4. Step 4: Simplify right side
   151,778x = 52,055,160,336
5. Step 5: Solve for x
   x = 52,055,160,336/151,778
6. Step 6: Final answer
   x = 342,969.08