Finding the Third Proportional to 853,171 and 1,867,045

Step by Step Solution

1. Step 1: Write the proportion equation
   853,171 : 1,867,045 = 1,867,045 : x
2. Step 2: Convert to fraction form
   853,171/1,867,045 = 1,867,045/x
3. Step 3: Cross multiply
   853,171x = 1,867,045 × 1,867,045
4. Step 4: Simplify right side
   853,171x = 3,485,857,032,025
5. Step 5: Solve for x
   x = 3,485,857,032,025/853,171
6. Step 6: Final answer
   x = 4,085,765.96