Finding the Third Proportional to 17,724 and 37,320

Step by Step Solution

1. Step 1: Write the proportion equation
   17,724 : 37,320 = 37,320 : x
2. Step 2: Convert to fraction form
   17,724/37,320 = 37,320/x
3. Step 3: Cross multiply
   17,724x = 37,320 × 37,320
4. Step 4: Simplify right side
   17,724x = 1,392,782,400
5. Step 5: Solve for x
   x = 1,392,782,400/17,724
6. Step 6: Final answer
   x = 78,581.72