Finding the Third Proportional to 10,003.78 and 21,433.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.78 : 21,433.92 = 21,433.92 : x
2. Step 2: Convert to fraction form
   10,003.78/21,433.92 = 21,433.92/x
3. Step 3: Cross multiply
   10,003.78x = 21,433.92 × 21,433.92
4. Step 4: Simplify right side
   10,003.78x = 459,413,006.94
5. Step 5: Solve for x
   x = 459,413,006.94/10,003.78
6. Step 6: Final answer
   x = 45,923.94