Finding the Third Proportional to 17,986 and 38,572

Step by Step Solution

1. Step 1: Write the proportion equation
   17,986 : 38,572 = 38,572 : x
2. Step 2: Convert to fraction form
   17,986/38,572 = 38,572/x
3. Step 3: Cross multiply
   17,986x = 38,572 × 38,572
4. Step 4: Simplify right side
   17,986x = 1,487,799,184
5. Step 5: Solve for x
   x = 1,487,799,184/17,986
6. Step 6: Final answer
   x = 82,719.85