Finding the Third Proportional to 216,052 and 338,150

Step by Step Solution

1. Step 1: Write the proportion equation
   216,052 : 338,150 = 338,150 : x
2. Step 2: Convert to fraction form
   216,052/338,150 = 338,150/x
3. Step 3: Cross multiply
   216,052x = 338,150 × 338,150
4. Step 4: Simplify right side
   216,052x = 114,345,422,500
5. Step 5: Solve for x
   x = 114,345,422,500/216,052
6. Step 6: Final answer
   x = 529,249.54