Finding the Third Proportional to 1,395.38 and 2,091.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.38 : 2,091.56 = 2,091.56 : x
2. Step 2: Convert to fraction form
   1,395.38/2,091.56 = 2,091.56/x
3. Step 3: Cross multiply
   1,395.38x = 2,091.56 × 2,091.56
4. Step 4: Simplify right side
   1,395.38x = 4,374,633.69
5. Step 5: Solve for x
   x = 4,374,633.69/1,395.38
6. Step 6: Final answer
   x = 3,135.10