Finding the Third Proportional to 188,162 and 276,222

Step by Step Solution

1. Step 1: Write the proportion equation
   188,162 : 276,222 = 276,222 : x
2. Step 2: Convert to fraction form
   188,162/276,222 = 276,222/x
3. Step 3: Cross multiply
   188,162x = 276,222 × 276,222
4. Step 4: Simplify right side
   188,162x = 76,298,593,284
5. Step 5: Solve for x
   x = 76,298,593,284/188,162
6. Step 6: Final answer
   x = 405,494.17