Finding the Third Proportional to 646,309.13 and 1,022,923.69

Step by Step Solution

1. Step 1: Write the proportion equation
   646,309.13 : 1,022,923.69 = 1,022,923.69 : x
2. Step 2: Convert to fraction form
   646,309.13/1,022,923.69 = 1,022,923.69/x
3. Step 3: Cross multiply
   646,309.13x = 1,022,923.69 × 1,022,923.69
4. Step 4: Simplify right side
   646,309.13x = 1,046,372,870,448.60
5. Step 5: Solve for x
   x = 1,046,372,870,448.60/646,309.13
6. Step 6: Final answer
   x = 1,618,997.52