Finding the Third Proportional to 9,942.75 and 21,267.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,942.75 : 21,267.56 = 21,267.56 : x
2. Step 2: Convert to fraction form
   9,942.75/21,267.56 = 21,267.56/x
3. Step 3: Cross multiply
   9,942.75x = 21,267.56 × 21,267.56
4. Step 4: Simplify right side
   9,942.75x = 452,309,214.69
5. Step 5: Solve for x
   x = 452,309,214.69/9,942.75
6. Step 6: Final answer
   x = 45,491.36