Finding the Third Proportional to 936.56 and 1,996.31

Step by Step Solution

1. Step 1: Write the proportion equation
   936.56 : 1,996.31 = 1,996.31 : x
2. Step 2: Convert to fraction form
   936.56/1,996.31 = 1,996.31/x
3. Step 3: Cross multiply
   936.56x = 1,996.31 × 1,996.31
4. Step 4: Simplify right side
   936.56x = 3,985,263.60
5. Step 5: Solve for x
   x = 3,985,263.60/936.56
6. Step 6: Final answer
   x = 4,255.20