Finding the Third Proportional to 9,923.77 and 21,791.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,923.77 : 21,791.53 = 21,791.53 : x
2. Step 2: Convert to fraction form
   9,923.77/21,791.53 = 21,791.53/x
3. Step 3: Cross multiply
   9,923.77x = 21,791.53 × 21,791.53
4. Step 4: Simplify right side
   9,923.77x = 474,870,834.22
5. Step 5: Solve for x
   x = 474,870,834.22/9,923.77
6. Step 6: Final answer
   x = 47,851.88