Finding the Third Proportional to 843,400.50 and 1,836,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   843,400.50 : 1,836,550.50 = 1,836,550.50 : x
2. Step 2: Convert to fraction form
   843,400.50/1,836,550.50 = 1,836,550.50/x
3. Step 3: Cross multiply
   843,400.50x = 1,836,550.50 × 1,836,550.50
4. Step 4: Simplify right side
   843,400.50x = 3,372,917,739,050.25
5. Step 5: Solve for x
   x = 3,372,917,739,050.25/843,400.50
6. Step 6: Final answer
   x = 3,999,188.69