Finding the Third Proportional to 15,724 and 23,789

Step by Step Solution

1. Step 1: Write the proportion equation
   15,724 : 23,789 = 23,789 : x
2. Step 2: Convert to fraction form
   15,724/23,789 = 23,789/x
3. Step 3: Cross multiply
   15,724x = 23,789 × 23,789
4. Step 4: Simplify right side
   15,724x = 565,916,521
5. Step 5: Solve for x
   x = 565,916,521/15,724
6. Step 6: Final answer
   x = 35,990.62