Finding the Third Proportional to 383.06 and 805.31

Step by Step Solution

1. Step 1: Write the proportion equation
   383.06 : 805.31 = 805.31 : x
2. Step 2: Convert to fraction form
   383.06/805.31 = 805.31/x
3. Step 3: Cross multiply
   383.06x = 805.31 × 805.31
4. Step 4: Simplify right side
   383.06x = 648,528.22
5. Step 5: Solve for x
   x = 648,528.22/383.06
6. Step 6: Final answer
   x = 1,693.01