Finding the Third Proportional to 861,410 and 1,283,698

Step by Step Solution

1. Step 1: Write the proportion equation
   861,410 : 1,283,698 = 1,283,698 : x
2. Step 2: Convert to fraction form
   861,410/1,283,698 = 1,283,698/x
3. Step 3: Cross multiply
   861,410x = 1,283,698 × 1,283,698
4. Step 4: Simplify right side
   861,410x = 1,647,880,555,204
5. Step 5: Solve for x
   x = 1,647,880,555,204/861,410
6. Step 6: Final answer
   x = 1,913,003.74