Finding the Third Proportional to 435,858 and 660,308

Step by Step Solution

1. Step 1: Write the proportion equation
   435,858 : 660,308 = 660,308 : x
2. Step 2: Convert to fraction form
   435,858/660,308 = 660,308/x
3. Step 3: Cross multiply
   435,858x = 660,308 × 660,308
4. Step 4: Simplify right side
   435,858x = 436,006,654,864
5. Step 5: Solve for x
   x = 436,006,654,864/435,858
6. Step 6: Final answer
   x = 1,000,341.06