Finding the Third Proportional to 23,001 and 42,720

Step by Step Solution

1. Step 1: Write the proportion equation
   23,001 : 42,720 = 42,720 : x
2. Step 2: Convert to fraction form
   23,001/42,720 = 42,720/x
3. Step 3: Cross multiply
   23,001x = 42,720 × 42,720
4. Step 4: Simplify right side
   23,001x = 1,824,998,400
5. Step 5: Solve for x
   x = 1,824,998,400/23,001
6. Step 6: Final answer
   x = 79,344.31