Finding the Third Proportional to 535,734 and 809,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   535,734 : 809,077.50 = 809,077.50 : x
2. Step 2: Convert to fraction form
   535,734/809,077.50 = 809,077.50/x
3. Step 3: Cross multiply
   535,734x = 809,077.50 × 809,077.50
4. Step 4: Simplify right side
   535,734x = 654,606,401,006.25
5. Step 5: Solve for x
   x = 654,606,401,006.25/535,734
6. Step 6: Final answer
   x = 1,221,886.98