Finding the Third Proportional to 21,380 and 33,586

Step by Step Solution

1. Step 1: Write the proportion equation
   21,380 : 33,586 = 33,586 : x
2. Step 2: Convert to fraction form
   21,380/33,586 = 33,586/x
3. Step 3: Cross multiply
   21,380x = 33,586 × 33,586
4. Step 4: Simplify right side
   21,380x = 1,128,019,396
5. Step 5: Solve for x
   x = 1,128,019,396/21,380
6. Step 6: Final answer
   x = 52,760.50