Finding the Third Proportional to 9,764 and 21,472

Step by Step Solution

1. Step 1: Write the proportion equation
   9,764 : 21,472 = 21,472 : x
2. Step 2: Convert to fraction form
   9,764/21,472 = 21,472/x
3. Step 3: Cross multiply
   9,764x = 21,472 × 21,472
4. Step 4: Simplify right side
   9,764x = 461,046,784
5. Step 5: Solve for x
   x = 461,046,784/9,764
6. Step 6: Final answer
   x = 47,219.05