Finding the Third Proportional to 535,791 and 810,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   535,791 : 810,574.50 = 810,574.50 : x
2. Step 2: Convert to fraction form
   535,791/810,574.50 = 810,574.50/x
3. Step 3: Cross multiply
   535,791x = 810,574.50 × 810,574.50
4. Step 4: Simplify right side
   535,791x = 657,031,020,050.25
5. Step 5: Solve for x
   x = 657,031,020,050.25/535,791
6. Step 6: Final answer
   x = 1,226,282.30