Finding the Third Proportional to 823,959 and 1,275,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   823,959 : 1,275,142.50 = 1,275,142.50 : x
2. Step 2: Convert to fraction form
   823,959/1,275,142.50 = 1,275,142.50/x
3. Step 3: Cross multiply
   823,959x = 1,275,142.50 × 1,275,142.50
4. Step 4: Simplify right side
   823,959x = 1,625,988,395,306.25
5. Step 5: Solve for x
   x = 1,625,988,395,306.25/823,959
6. Step 6: Final answer
   x = 1,973,385.08