Finding the Third Proportional to 21,554 and 30,423

Step by Step Solution

1. Step 1: Write the proportion equation
   21,554 : 30,423 = 30,423 : x
2. Step 2: Convert to fraction form
   21,554/30,423 = 30,423/x
3. Step 3: Cross multiply
   21,554x = 30,423 × 30,423
4. Step 4: Simplify right side
   21,554x = 925,558,929
5. Step 5: Solve for x
   x = 925,558,929/21,554
6. Step 6: Final answer
   x = 42,941.40