Finding the Third Proportional to 151,788 and 228,172

Step by Step Solution

1. Step 1: Write the proportion equation
   151,788 : 228,172 = 228,172 : x
2. Step 2: Convert to fraction form
   151,788/228,172 = 228,172/x
3. Step 3: Cross multiply
   151,788x = 228,172 × 228,172
4. Step 4: Simplify right side
   151,788x = 52,062,461,584
5. Step 5: Solve for x
   x = 52,062,461,584/151,788
6. Step 6: Final answer
   x = 342,994.58