Finding the Third Proportional to 2,390 and 5,607

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390 : 5,607 = 5,607 : x
2. Step 2: Convert to fraction form
   2,390/5,607 = 5,607/x
3. Step 3: Cross multiply
   2,390x = 5,607 × 5,607
4. Step 4: Simplify right side
   2,390x = 31,438,449
5. Step 5: Solve for x
   x = 31,438,449/2,390
6. Step 6: Final answer
   x = 13,154.16