Finding the Third Proportional to 215,010 and 333,603

Step by Step Solution

1. Step 1: Write the proportion equation
   215,010 : 333,603 = 333,603 : x
2. Step 2: Convert to fraction form
   215,010/333,603 = 333,603/x
3. Step 3: Cross multiply
   215,010x = 333,603 × 333,603
4. Step 4: Simplify right side
   215,010x = 111,290,961,609
5. Step 5: Solve for x
   x = 111,290,961,609/215,010
6. Step 6: Final answer
   x = 517,608.30