Finding the Third Proportional to 394,518.50 and 862,844.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,518.50 : 862,844.50 = 862,844.50 : x
2. Step 2: Convert to fraction form
   394,518.50/862,844.50 = 862,844.50/x
3. Step 3: Cross multiply
   394,518.50x = 862,844.50 × 862,844.50
4. Step 4: Simplify right side
   394,518.50x = 744,500,631,180.25
5. Step 5: Solve for x
   x = 744,500,631,180.25/394,518.50
6. Step 6: Final answer
   x = 1,887,112.09