Finding the Third Proportional to 861,984 and 1,853,685

Step by Step Solution

1. Step 1: Write the proportion equation
   861,984 : 1,853,685 = 1,853,685 : x
2. Step 2: Convert to fraction form
   861,984/1,853,685 = 1,853,685/x
3. Step 3: Cross multiply
   861,984x = 1,853,685 × 1,853,685
4. Step 4: Simplify right side
   861,984x = 3,436,148,079,225
5. Step 5: Solve for x
   x = 3,436,148,079,225/861,984
6. Step 6: Final answer
   x = 3,986,324.66