Finding the Third Proportional to 810,543 and 1,271,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   810,543 : 1,271,443.50 = 1,271,443.50 : x
2. Step 2: Convert to fraction form
   810,543/1,271,443.50 = 1,271,443.50/x
3. Step 3: Cross multiply
   810,543x = 1,271,443.50 × 1,271,443.50
4. Step 4: Simplify right side
   810,543x = 1,616,568,573,692.25
5. Step 5: Solve for x
   x = 1,616,568,573,692.25/810,543
6. Step 6: Final answer
   x = 1,994,426.67