Finding the Third Proportional to 1,903.78 and 3,086.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,903.78 : 3,086.16 = 3,086.16 : x
2. Step 2: Convert to fraction form
   1,903.78/3,086.16 = 3,086.16/x
3. Step 3: Cross multiply
   1,903.78x = 3,086.16 × 3,086.16
4. Step 4: Simplify right side
   1,903.78x = 9,524,360.40
5. Step 5: Solve for x
   x = 9,524,360.40/1,903.78
6. Step 6: Final answer
   x = 5,002.86