Finding the Third Proportional to 853,936 and 1,858,208

Step by Step Solution

1. Step 1: Write the proportion equation
   853,936 : 1,858,208 = 1,858,208 : x
2. Step 2: Convert to fraction form
   853,936/1,858,208 = 1,858,208/x
3. Step 3: Cross multiply
   853,936x = 1,858,208 × 1,858,208
4. Step 4: Simplify right side
   853,936x = 3,452,936,971,264
5. Step 5: Solve for x
   x = 3,452,936,971,264/853,936
6. Step 6: Final answer
   x = 4,043,554.75