Finding the Third Proportional to 853,191 and 1,867,086

Step by Step Solution

1. Step 1: Write the proportion equation
   853,191 : 1,867,086 = 1,867,086 : x
2. Step 2: Convert to fraction form
   853,191/1,867,086 = 1,867,086/x
3. Step 3: Cross multiply
   853,191x = 1,867,086 × 1,867,086
4. Step 4: Simplify right side
   853,191x = 3,486,010,131,396
5. Step 5: Solve for x
   x = 3,486,010,131,396/853,191
6. Step 6: Final answer
   x = 4,085,849.63