Finding the Third Proportional to 21,560 and 34,287

Step by Step Solution

1. Step 1: Write the proportion equation
   21,560 : 34,287 = 34,287 : x
2. Step 2: Convert to fraction form
   21,560/34,287 = 34,287/x
3. Step 3: Cross multiply
   21,560x = 34,287 × 34,287
4. Step 4: Simplify right side
   21,560x = 1,175,598,369
5. Step 5: Solve for x
   x = 1,175,598,369/21,560
6. Step 6: Final answer
   x = 54,526.83