Finding the Third Proportional to 396,085.50 and 855,300.38

Step by Step Solution

1. Step 1: Write the proportion equation
   396,085.50 : 855,300.38 = 855,300.38 : x
2. Step 2: Convert to fraction form
   396,085.50/855,300.38 = 855,300.38/x
3. Step 3: Cross multiply
   396,085.50x = 855,300.38 × 855,300.38
4. Step 4: Simplify right side
   396,085.50x = 731,538,731,475.14
5. Step 5: Solve for x
   x = 731,538,731,475.14/396,085.50
6. Step 6: Final answer
   x = 1,846,921.26