Finding the Third Proportional to 10,010.25 and 21,781.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,010.25 : 21,781.88 = 21,781.88 : x
2. Step 2: Convert to fraction form
   10,010.25/21,781.88 = 21,781.88/x
3. Step 3: Cross multiply
   10,010.25x = 21,781.88 × 21,781.88
4. Step 4: Simplify right side
   10,010.25x = 474,450,078.52
5. Step 5: Solve for x
   x = 474,450,078.52/10,010.25
6. Step 6: Final answer
   x = 47,396.43