Finding the Third Proportional to 789,365.25 and 1,728,965.25

Step by Step Solution

1. Step 1: Write the proportion equation
   789,365.25 : 1,728,965.25 = 1,728,965.25 : x
2. Step 2: Convert to fraction form
   789,365.25/1,728,965.25 = 1,728,965.25/x
3. Step 3: Cross multiply
   789,365.25x = 1,728,965.25 × 1,728,965.25
4. Step 4: Simplify right side
   789,365.25x = 2,989,320,835,707.56
5. Step 5: Solve for x
   x = 2,989,320,835,707.56/789,365.25
6. Step 6: Final answer
   x = 3,786,993.20