Finding the Third Proportional to 9,760.50 and 21,148.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.50 : 21,148.59 = 21,148.59 : x
2. Step 2: Convert to fraction form
   9,760.50/21,148.59 = 21,148.59/x
3. Step 3: Cross multiply
   9,760.50x = 21,148.59 × 21,148.59
4. Step 4: Simplify right side
   9,760.50x = 447,263,017.60
5. Step 5: Solve for x
   x = 447,263,017.60/9,760.50
6. Step 6: Final answer
   x = 45,823.78