Finding the Third Proportional to 2,020 and 4,890

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020 : 4,890 = 4,890 : x
2. Step 2: Convert to fraction form
   2,020/4,890 = 4,890/x
3. Step 3: Cross multiply
   2,020x = 4,890 × 4,890
4. Step 4: Simplify right side
   2,020x = 23,912,100
5. Step 5: Solve for x
   x = 23,912,100/2,020
6. Step 6: Final answer
   x = 11,837.67