Finding the Third Proportional to 9,930.09 and 21,773.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,930.09 : 21,773.81 = 21,773.81 : x
2. Step 2: Convert to fraction form
   9,930.09/21,773.81 = 21,773.81/x
3. Step 3: Cross multiply
   9,930.09x = 21,773.81 × 21,773.81
4. Step 4: Simplify right side
   9,930.09x = 474,098,910.79
5. Step 5: Solve for x
   x = 474,098,910.79/9,930.09
6. Step 6: Final answer
   x = 47,743.65