Finding the Third Proportional to 10,076.81 and 21,879.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,076.81 : 21,879.38 = 21,879.38 : x
2. Step 2: Convert to fraction form
   10,076.81/21,879.38 = 21,879.38/x
3. Step 3: Cross multiply
   10,076.81x = 21,879.38 × 21,879.38
4. Step 4: Simplify right side
   10,076.81x = 478,707,050.39
5. Step 5: Solve for x
   x = 478,707,050.39/10,076.81
6. Step 6: Final answer
   x = 47,505.80