Finding the Third Proportional to 19,472 and 21,392

Step by Step Solution

1. Step 1: Write the proportion equation
   19,472 : 21,392 = 21,392 : x
2. Step 2: Convert to fraction form
   19,472/21,392 = 21,392/x
3. Step 3: Cross multiply
   19,472x = 21,392 × 21,392
4. Step 4: Simplify right side
   19,472x = 457,617,664
5. Step 5: Solve for x
   x = 457,617,664/19,472
6. Step 6: Final answer
   x = 23,501.32