Finding the Third Proportional to 217,060.50 and 333,792

Step by Step Solution

1. Step 1: Write the proportion equation
   217,060.50 : 333,792 = 333,792 : x
2. Step 2: Convert to fraction form
   217,060.50/333,792 = 333,792/x
3. Step 3: Cross multiply
   217,060.50x = 333,792 × 333,792
4. Step 4: Simplify right side
   217,060.50x = 111,417,099,264
5. Step 5: Solve for x
   x = 111,417,099,264/217,060.50
6. Step 6: Final answer
   x = 513,299.74