Finding the Third Proportional to 817,443 and 1,275,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   817,443 : 1,275,835.50 = 1,275,835.50 : x
2. Step 2: Convert to fraction form
   817,443/1,275,835.50 = 1,275,835.50/x
3. Step 3: Cross multiply
   817,443x = 1,275,835.50 × 1,275,835.50
4. Step 4: Simplify right side
   817,443x = 1,627,756,223,060.25
5. Step 5: Solve for x
   x = 1,627,756,223,060.25/817,443
6. Step 6: Final answer
   x = 1,991,277.95