Finding the Third Proportional to 13,859 and 21,254

Step by Step Solution

1. Step 1: Write the proportion equation
   13,859 : 21,254 = 21,254 : x
2. Step 2: Convert to fraction form
   13,859/21,254 = 21,254/x
3. Step 3: Cross multiply
   13,859x = 21,254 × 21,254
4. Step 4: Simplify right side
   13,859x = 451,732,516
5. Step 5: Solve for x
   x = 451,732,516/13,859
6. Step 6: Final answer
   x = 32,594.89