Finding the Third Proportional to 1,986.38 and 4,236.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.38 : 4,236.56 = 4,236.56 : x
2. Step 2: Convert to fraction form
   1,986.38/4,236.56 = 4,236.56/x
3. Step 3: Cross multiply
   1,986.38x = 4,236.56 × 4,236.56
4. Step 4: Simplify right side
   1,986.38x = 17,948,461.82
5. Step 5: Solve for x
   x = 17,948,461.82/1,986.38
6. Step 6: Final answer
   x = 9,035.79