Finding the Third Proportional to 1,815.75 and 2,738.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.75 : 2,738.81 = 2,738.81 : x
2. Step 2: Convert to fraction form
   1,815.75/2,738.81 = 2,738.81/x
3. Step 3: Cross multiply
   1,815.75x = 2,738.81 × 2,738.81
4. Step 4: Simplify right side
   1,815.75x = 7,501,093.91
5. Step 5: Solve for x
   x = 7,501,093.91/1,815.75
6. Step 6: Final answer
   x = 4,131.13