Finding the Third Proportional to 156,959 and 228,145

Step by Step Solution

1. Step 1: Write the proportion equation
   156,959 : 228,145 = 228,145 : x
2. Step 2: Convert to fraction form
   156,959/228,145 = 228,145/x
3. Step 3: Cross multiply
   156,959x = 228,145 × 228,145
4. Step 4: Simplify right side
   156,959x = 52,050,141,025
5. Step 5: Solve for x
   x = 52,050,141,025/156,959
6. Step 6: Final answer
   x = 331,616.16