Finding the Third Proportional to 853,218 and 1,843,272

Step by Step Solution

1. Step 1: Write the proportion equation
   853,218 : 1,843,272 = 1,843,272 : x
2. Step 2: Convert to fraction form
   853,218/1,843,272 = 1,843,272/x
3. Step 3: Cross multiply
   853,218x = 1,843,272 × 1,843,272
4. Step 4: Simplify right side
   853,218x = 3,397,651,665,984
5. Step 5: Solve for x
   x = 3,397,651,665,984/853,218
6. Step 6: Final answer
   x = 3,982,161.26