Finding the Third Proportional to 435,648 and 666,288

Step by Step Solution

1. Step 1: Write the proportion equation
   435,648 : 666,288 = 666,288 : x
2. Step 2: Convert to fraction form
   435,648/666,288 = 666,288/x
3. Step 3: Cross multiply
   435,648x = 666,288 × 666,288
4. Step 4: Simplify right side
   435,648x = 443,939,698,944
5. Step 5: Solve for x
   x = 443,939,698,944/435,648
6. Step 6: Final answer
   x = 1,019,033.02