Finding the Third Proportional to 387,571.50 and 822,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   387,571.50 : 822,055.50 = 822,055.50 : x
2. Step 2: Convert to fraction form
   387,571.50/822,055.50 = 822,055.50/x
3. Step 3: Cross multiply
   387,571.50x = 822,055.50 × 822,055.50
4. Step 4: Simplify right side
   387,571.50x = 675,775,245,080.25
5. Step 5: Solve for x
   x = 675,775,245,080.25/387,571.50
6. Step 6: Final answer
   x = 1,743,614.39