Finding the Third Proportional to 873,648 and 1,868,744

Step by Step Solution

1. Step 1: Write the proportion equation
   873,648 : 1,868,744 = 1,868,744 : x
2. Step 2: Convert to fraction form
   873,648/1,868,744 = 1,868,744/x
3. Step 3: Cross multiply
   873,648x = 1,868,744 × 1,868,744
4. Step 4: Simplify right side
   873,648x = 3,492,204,137,536
5. Step 5: Solve for x
   x = 3,492,204,137,536/873,648
6. Step 6: Final answer
   x = 3,997,266.79