Finding the Third Proportional to 861,734 and 1,851,404

Step by Step Solution

1. Step 1: Write the proportion equation
   861,734 : 1,851,404 = 1,851,404 : x
2. Step 2: Convert to fraction form
   861,734/1,851,404 = 1,851,404/x
3. Step 3: Cross multiply
   861,734x = 1,851,404 × 1,851,404
4. Step 4: Simplify right side
   861,734x = 3,427,696,771,216
5. Step 5: Solve for x
   x = 3,427,696,771,216/861,734
6. Step 6: Final answer
   x = 3,977,673.82