Finding the Third Proportional to 1,978 and 5,074

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978 : 5,074 = 5,074 : x
2. Step 2: Convert to fraction form
   1,978/5,074 = 5,074/x
3. Step 3: Cross multiply
   1,978x = 5,074 × 5,074
4. Step 4: Simplify right side
   1,978x = 25,745,476
5. Step 5: Solve for x
   x = 25,745,476/1,978
6. Step 6: Final answer
   x = 13,015.91