Finding the Third Proportional to 853,173 and 1,811,322

Step by Step Solution

1. Step 1: Write the proportion equation
   853,173 : 1,811,322 = 1,811,322 : x
2. Step 2: Convert to fraction form
   853,173/1,811,322 = 1,811,322/x
3. Step 3: Cross multiply
   853,173x = 1,811,322 × 1,811,322
4. Step 4: Simplify right side
   853,173x = 3,280,887,387,684
5. Step 5: Solve for x
   x = 3,280,887,387,684/853,173
6. Step 6: Final answer
   x = 3,845,512.44