Finding the Third Proportional to 804,864 and 1,089,198

Step by Step Solution

1. Step 1: Write the proportion equation
   804,864 : 1,089,198 = 1,089,198 : x
2. Step 2: Convert to fraction form
   804,864/1,089,198 = 1,089,198/x
3. Step 3: Cross multiply
   804,864x = 1,089,198 × 1,089,198
4. Step 4: Simplify right side
   804,864x = 1,186,352,283,204
5. Step 5: Solve for x
   x = 1,186,352,283,204/804,864
6. Step 6: Final answer
   x = 1,473,978.56