Finding the Third Proportional to 17,705 and 38,630

Step by Step Solution

1. Step 1: Write the proportion equation
   17,705 : 38,630 = 38,630 : x
2. Step 2: Convert to fraction form
   17,705/38,630 = 38,630/x
3. Step 3: Cross multiply
   17,705x = 38,630 × 38,630
4. Step 4: Simplify right side
   17,705x = 1,492,276,900
5. Step 5: Solve for x
   x = 1,492,276,900/17,705
6. Step 6: Final answer
   x = 84,285.62