Finding the Third Proportional to 23,418 and 51,215

Step by Step Solution

1. Step 1: Write the proportion equation
   23,418 : 51,215 = 51,215 : x
2. Step 2: Convert to fraction form
   23,418/51,215 = 51,215/x
3. Step 3: Cross multiply
   23,418x = 51,215 × 51,215
4. Step 4: Simplify right side
   23,418x = 2,622,976,225
5. Step 5: Solve for x
   x = 2,622,976,225/23,418
6. Step 6: Final answer
   x = 112,006.84