Finding the Third Proportional to 353,568 and 535,488

Step by Step Solution

1. Step 1: Write the proportion equation
   353,568 : 535,488 = 535,488 : x
2. Step 2: Convert to fraction form
   353,568/535,488 = 535,488/x
3. Step 3: Cross multiply
   353,568x = 535,488 × 535,488
4. Step 4: Simplify right side
   353,568x = 286,747,398,144
5. Step 5: Solve for x
   x = 286,747,398,144/353,568
6. Step 6: Final answer
   x = 811,010.61