Finding the Third Proportional to 302,262 and 661,980

Step by Step Solution

1. Step 1: Write the proportion equation
   302,262 : 661,980 = 661,980 : x
2. Step 2: Convert to fraction form
   302,262/661,980 = 661,980/x
3. Step 3: Cross multiply
   302,262x = 661,980 × 661,980
4. Step 4: Simplify right side
   302,262x = 438,217,520,400
5. Step 5: Solve for x
   x = 438,217,520,400/302,262
6. Step 6: Final answer
   x = 1,449,793.62