Finding the Third Proportional to 10,515 and 22,155

Step by Step Solution

1. Step 1: Write the proportion equation
   10,515 : 22,155 = 22,155 : x
2. Step 2: Convert to fraction form
   10,515/22,155 = 22,155/x
3. Step 3: Cross multiply
   10,515x = 22,155 × 22,155
4. Step 4: Simplify right side
   10,515x = 490,844,025
5. Step 5: Solve for x
   x = 490,844,025/10,515
6. Step 6: Final answer
   x = 46,680.36