Finding the Third Proportional to 435,283.50 and 665,805

Step by Step Solution

1. Step 1: Write the proportion equation
   435,283.50 : 665,805 = 665,805 : x
2. Step 2: Convert to fraction form
   435,283.50/665,805 = 665,805/x
3. Step 3: Cross multiply
   435,283.50x = 665,805 × 665,805
4. Step 4: Simplify right side
   435,283.50x = 443,296,298,025
5. Step 5: Solve for x
   x = 443,296,298,025/435,283.50
6. Step 6: Final answer
   x = 1,018,408.23