Finding the Third Proportional to 139,959 and 302,020

Step by Step Solution

1. Step 1: Write the proportion equation
   139,959 : 302,020 = 302,020 : x
2. Step 2: Convert to fraction form
   139,959/302,020 = 302,020/x
3. Step 3: Cross multiply
   139,959x = 302,020 × 302,020
4. Step 4: Simplify right side
   139,959x = 91,216,080,400
5. Step 5: Solve for x
   x = 91,216,080,400/139,959
6. Step 6: Final answer
   x = 651,734.30