Finding the Third Proportional to 805,686 and 1,090,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   805,686 : 1,090,345.50 = 1,090,345.50 : x
2. Step 2: Convert to fraction form
   805,686/1,090,345.50 = 1,090,345.50/x
3. Step 3: Cross multiply
   805,686x = 1,090,345.50 × 1,090,345.50
4. Step 4: Simplify right side
   805,686x = 1,188,853,309,370.25
5. Step 5: Solve for x
   x = 1,188,853,309,370.25/805,686
6. Step 6: Final answer
   x = 1,475,578.96