Finding the Third Proportional to 21,776 and 30,571

Step by Step Solution

1. Step 1: Write the proportion equation
   21,776 : 30,571 = 30,571 : x
2. Step 2: Convert to fraction form
   21,776/30,571 = 30,571/x
3. Step 3: Cross multiply
   21,776x = 30,571 × 30,571
4. Step 4: Simplify right side
   21,776x = 934,586,041
5. Step 5: Solve for x
   x = 934,586,041/21,776
6. Step 6: Final answer
   x = 42,918.17