Finding the Third Proportional to 810,769.50 and 1,272,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   810,769.50 : 1,272,550.50 = 1,272,550.50 : x
2. Step 2: Convert to fraction form
   810,769.50/1,272,550.50 = 1,272,550.50/x
3. Step 3: Cross multiply
   810,769.50x = 1,272,550.50 × 1,272,550.50
4. Step 4: Simplify right side
   810,769.50x = 1,619,384,775,050.25
5. Step 5: Solve for x
   x = 1,619,384,775,050.25/810,769.50
6. Step 6: Final answer
   x = 1,997,342.99