Finding the Third Proportional to 302,354 and 661,996

Step by Step Solution

1. Step 1: Write the proportion equation
   302,354 : 661,996 = 661,996 : x
2. Step 2: Convert to fraction form
   302,354/661,996 = 661,996/x
3. Step 3: Cross multiply
   302,354x = 661,996 × 661,996
4. Step 4: Simplify right side
   302,354x = 438,238,704,016
5. Step 5: Solve for x
   x = 438,238,704,016/302,354
6. Step 6: Final answer
   x = 1,449,422.54