Finding the Third Proportional to 10,972.88 and 21,398.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,972.88 : 21,398.25 = 21,398.25 : x
2. Step 2: Convert to fraction form
   10,972.88/21,398.25 = 21,398.25/x
3. Step 3: Cross multiply
   10,972.88x = 21,398.25 × 21,398.25
4. Step 4: Simplify right side
   10,972.88x = 457,885,103.06
5. Step 5: Solve for x
   x = 457,885,103.06/10,972.88
6. Step 6: Final answer
   x = 41,728.82