Finding the Third Proportional to 9,853.31 and 21,622.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,853.31 : 21,622.78 = 21,622.78 : x
2. Step 2: Convert to fraction form
   9,853.31/21,622.78 = 21,622.78/x
3. Step 3: Cross multiply
   9,853.31x = 21,622.78 × 21,622.78
4. Step 4: Simplify right side
   9,853.31x = 467,544,668.99
5. Step 5: Solve for x
   x = 467,544,668.99/9,853.31
6. Step 6: Final answer
   x = 47,450.51