Finding the Third Proportional to 156,931 and 228,105

Step by Step Solution

1. Step 1: Write the proportion equation
   156,931 : 228,105 = 228,105 : x
2. Step 2: Convert to fraction form
   156,931/228,105 = 228,105/x
3. Step 3: Cross multiply
   156,931x = 228,105 × 228,105
4. Step 4: Simplify right side
   156,931x = 52,031,891,025
5. Step 5: Solve for x
   x = 52,031,891,025/156,931
6. Step 6: Final answer
   x = 331,559.04