Finding the Third Proportional to 15,210 and 17,442

Step by Step Solution

1. Step 1: Write the proportion equation
   15,210 : 17,442 = 17,442 : x
2. Step 2: Convert to fraction form
   15,210/17,442 = 17,442/x
3. Step 3: Cross multiply
   15,210x = 17,442 × 17,442
4. Step 4: Simplify right side
   15,210x = 304,223,364
5. Step 5: Solve for x
   x = 304,223,364/15,210
6. Step 6: Final answer
   x = 20,001.54