Finding the Third Proportional to 356,996 and 535,510

Step by Step Solution

1. Step 1: Write the proportion equation
   356,996 : 535,510 = 535,510 : x
2. Step 2: Convert to fraction form
   356,996/535,510 = 535,510/x
3. Step 3: Cross multiply
   356,996x = 535,510 × 535,510
4. Step 4: Simplify right side
   356,996x = 286,770,960,100
5. Step 5: Solve for x
   x = 286,770,960,100/356,996
6. Step 6: Final answer
   x = 803,289.00