Finding the Third Proportional to 10,380.66 and 14,959.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,380.66 : 14,959.69 = 14,959.69 : x
2. Step 2: Convert to fraction form
   10,380.66/14,959.69 = 14,959.69/x
3. Step 3: Cross multiply
   10,380.66x = 14,959.69 × 14,959.69
4. Step 4: Simplify right side
   10,380.66x = 223,792,250.10
5. Step 5: Solve for x
   x = 223,792,250.10/10,380.66
6. Step 6: Final answer
   x = 21,558.58