Finding the Third Proportional to 10,388 and 22,640

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388 : 22,640 = 22,640 : x
2. Step 2: Convert to fraction form
   10,388/22,640 = 22,640/x
3. Step 3: Cross multiply
   10,388x = 22,640 × 22,640
4. Step 4: Simplify right side
   10,388x = 512,569,600
5. Step 5: Solve for x
   x = 512,569,600/10,388
6. Step 6: Final answer
   x = 49,342.47