Finding the Third Proportional to 206,632 and 302,870

Step by Step Solution

1. Step 1: Write the proportion equation
   206,632 : 302,870 = 302,870 : x
2. Step 2: Convert to fraction form
   206,632/302,870 = 302,870/x
3. Step 3: Cross multiply
   206,632x = 302,870 × 302,870
4. Step 4: Simplify right side
   206,632x = 91,730,236,900
5. Step 5: Solve for x
   x = 91,730,236,900/206,632
6. Step 6: Final answer
   x = 443,930.45