Finding the Third Proportional to 9,775.69 and 20,628.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,775.69 : 20,628.42 = 20,628.42 : x
2. Step 2: Convert to fraction form
   9,775.69/20,628.42 = 20,628.42/x
3. Step 3: Cross multiply
   9,775.69x = 20,628.42 × 20,628.42
4. Step 4: Simplify right side
   9,775.69x = 425,531,789.05
5. Step 5: Solve for x
   x = 425,531,789.05/9,775.69
6. Step 6: Final answer
   x = 43,529.60