Finding the Third Proportional to 17,872 and 37,400

Step by Step Solution

1. Step 1: Write the proportion equation
   17,872 : 37,400 = 37,400 : x
2. Step 2: Convert to fraction form
   17,872/37,400 = 37,400/x
3. Step 3: Cross multiply
   17,872x = 37,400 × 37,400
4. Step 4: Simplify right side
   17,872x = 1,398,760,000
5. Step 5: Solve for x
   x = 1,398,760,000/17,872
6. Step 6: Final answer
   x = 78,265.44