Finding the Third Proportional to 217,696 and 333,030

Step by Step Solution

1. Step 1: Write the proportion equation
   217,696 : 333,030 = 333,030 : x
2. Step 2: Convert to fraction form
   217,696/333,030 = 333,030/x
3. Step 3: Cross multiply
   217,696x = 333,030 × 333,030
4. Step 4: Simplify right side
   217,696x = 110,908,980,900
5. Step 5: Solve for x
   x = 110,908,980,900/217,696
6. Step 6: Final answer
   x = 509,467.24