Finding the Third Proportional to 1,386.42 and 1,949.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.42 : 1,949.91 = 1,949.91 : x
2. Step 2: Convert to fraction form
   1,386.42/1,949.91 = 1,949.91/x
3. Step 3: Cross multiply
   1,386.42x = 1,949.91 × 1,949.91
4. Step 4: Simplify right side
   1,386.42x = 3,802,134.38
5. Step 5: Solve for x
   x = 3,802,134.38/1,386.42
6. Step 6: Final answer
   x = 2,742.41