Finding the Third Proportional to 21,106 and 30,419

Step by Step Solution

1. Step 1: Write the proportion equation
   21,106 : 30,419 = 30,419 : x
2. Step 2: Convert to fraction form
   21,106/30,419 = 30,419/x
3. Step 3: Cross multiply
   21,106x = 30,419 × 30,419
4. Step 4: Simplify right side
   21,106x = 925,315,561
5. Step 5: Solve for x
   x = 925,315,561/21,106
6. Step 6: Final answer
   x = 43,841.35