Finding the Third Proportional to 10,555.31 and 14,845.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,555.31 : 14,845.78 = 14,845.78 : x
2. Step 2: Convert to fraction form
   10,555.31/14,845.78 = 14,845.78/x
3. Step 3: Cross multiply
   10,555.31x = 14,845.78 × 14,845.78
4. Step 4: Simplify right side
   10,555.31x = 220,397,220.92
5. Step 5: Solve for x
   x = 220,397,220.92/10,555.31
6. Step 6: Final answer
   x = 20,880.22