Finding the Third Proportional to 12,258 and 22,815

Step by Step Solution

1. Step 1: Write the proportion equation
   12,258 : 22,815 = 22,815 : x
2. Step 2: Convert to fraction form
   12,258/22,815 = 22,815/x
3. Step 3: Cross multiply
   12,258x = 22,815 × 22,815
4. Step 4: Simplify right side
   12,258x = 520,524,225
5. Step 5: Solve for x
   x = 520,524,225/12,258
6. Step 6: Final answer
   x = 42,464.04