Finding the Third Proportional to 535,783 and 810,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   535,783 : 810,562.50 = 810,562.50 : x
2. Step 2: Convert to fraction form
   535,783/810,562.50 = 810,562.50/x
3. Step 3: Cross multiply
   535,783x = 810,562.50 × 810,562.50
4. Step 4: Simplify right side
   535,783x = 657,011,566,406.25
5. Step 5: Solve for x
   x = 657,011,566,406.25/535,783
6. Step 6: Final answer
   x = 1,226,264.30