Finding the Third Proportional to 9,760.50 and 21,287.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.50 : 21,287.81 = 21,287.81 : x
2. Step 2: Convert to fraction form
   9,760.50/21,287.81 = 21,287.81/x
3. Step 3: Cross multiply
   9,760.50x = 21,287.81 × 21,287.81
4. Step 4: Simplify right side
   9,760.50x = 453,170,961.04
5. Step 5: Solve for x
   x = 453,170,961.04/9,760.50
6. Step 6: Final answer
   x = 46,429.07