Finding the Third Proportional to 17,488 and 19,120

Step by Step Solution

1. Step 1: Write the proportion equation
   17,488 : 19,120 = 19,120 : x
2. Step 2: Convert to fraction form
   17,488/19,120 = 19,120/x
3. Step 3: Cross multiply
   17,488x = 19,120 × 19,120
4. Step 4: Simplify right side
   17,488x = 365,574,400
5. Step 5: Solve for x
   x = 365,574,400/17,488
6. Step 6: Final answer
   x = 20,904.30