Finding the Third Proportional to 10,424.75 and 21,274

Step by Step Solution

1. Step 1: Write the proportion equation
   10,424.75 : 21,274 = 21,274 : x
2. Step 2: Convert to fraction form
   10,424.75/21,274 = 21,274/x
3. Step 3: Cross multiply
   10,424.75x = 21,274 × 21,274
4. Step 4: Simplify right side
   10,424.75x = 452,583,076
5. Step 5: Solve for x
   x = 452,583,076/10,424.75
6. Step 6: Final answer
   x = 43,414.29