Finding the Third Proportional to 10,772 and 21,940

Step by Step Solution

1. Step 1: Write the proportion equation
   10,772 : 21,940 = 21,940 : x
2. Step 2: Convert to fraction form
   10,772/21,940 = 21,940/x
3. Step 3: Cross multiply
   10,772x = 21,940 × 21,940
4. Step 4: Simplify right side
   10,772x = 481,363,600
5. Step 5: Solve for x
   x = 481,363,600/10,772
6. Step 6: Final answer
   x = 44,686.56