Finding the Third Proportional to 156,957 and 228,142

Step by Step Solution

1. Step 1: Write the proportion equation
   156,957 : 228,142 = 228,142 : x
2. Step 2: Convert to fraction form
   156,957/228,142 = 228,142/x
3. Step 3: Cross multiply
   156,957x = 228,142 × 228,142
4. Step 4: Simplify right side
   156,957x = 52,048,772,164
5. Step 5: Solve for x
   x = 52,048,772,164/156,957
6. Step 6: Final answer
   x = 331,611.67