Finding the Third Proportional to 215,052 and 333,666

Step by Step Solution

1. Step 1: Write the proportion equation
   215,052 : 333,666 = 333,666 : x
2. Step 2: Convert to fraction form
   215,052/333,666 = 333,666/x
3. Step 3: Cross multiply
   215,052x = 333,666 × 333,666
4. Step 4: Simplify right side
   215,052x = 111,332,999,556
5. Step 5: Solve for x
   x = 111,332,999,556/215,052
6. Step 6: Final answer
   x = 517,702.69