Finding the Third Proportional to 518.48 and 802.83

Step by Step Solution

1. Step 1: Write the proportion equation
   518.48 : 802.83 = 802.83 : x
2. Step 2: Convert to fraction form
   518.48/802.83 = 802.83/x
3. Step 3: Cross multiply
   518.48x = 802.83 × 802.83
4. Step 4: Simplify right side
   518.48x = 644,533.00
5. Step 5: Solve for x
   x = 644,533.00/518.48
6. Step 6: Final answer
   x = 1,243.11