Finding the Third Proportional to 20,880 and 30,168

Step by Step Solution

1. Step 1: Write the proportion equation
   20,880 : 30,168 = 30,168 : x
2. Step 2: Convert to fraction form
   20,880/30,168 = 30,168/x
3. Step 3: Cross multiply
   20,880x = 30,168 × 30,168
4. Step 4: Simplify right side
   20,880x = 910,108,224
5. Step 5: Solve for x
   x = 910,108,224/20,880
6. Step 6: Final answer
   x = 43,587.56