Finding the Third Proportional to 151,780 and 228,160

Step by Step Solution

1. Step 1: Write the proportion equation
   151,780 : 228,160 = 228,160 : x
2. Step 2: Convert to fraction form
   151,780/228,160 = 228,160/x
3. Step 3: Cross multiply
   151,780x = 228,160 × 228,160
4. Step 4: Simplify right side
   151,780x = 52,056,985,600
5. Step 5: Solve for x
   x = 52,056,985,600/151,780
6. Step 6: Final answer
   x = 342,976.58