Finding the Third Proportional to 2,109 and 2,109

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109 : 2,109 = 2,109 : x
2. Step 2: Convert to fraction form
   2,109/2,109 = 2,109/x
3. Step 3: Cross multiply
   2,109x = 2,109 × 2,109
4. Step 4: Simplify right side
   2,109x = 4,447,881
5. Step 5: Solve for x
   x = 4,447,881/2,109
6. Step 6: Final answer
   x = 2,109