Finding the Third Proportional to 4,390 and 5,030

Step by Step Solution

1. Step 1: Write the proportion equation
   4,390 : 5,030 = 5,030 : x
2. Step 2: Convert to fraction form
   4,390/5,030 = 5,030/x
3. Step 3: Cross multiply
   4,390x = 5,030 × 5,030
4. Step 4: Simplify right side
   4,390x = 25,300,900
5. Step 5: Solve for x
   x = 25,300,900/4,390
6. Step 6: Final answer
   x = 5,763.30