Finding the Third Proportional to 864,674 and 1,293,555

Step by Step Solution

1. Step 1: Write the proportion equation
   864,674 : 1,293,555 = 1,293,555 : x
2. Step 2: Convert to fraction form
   864,674/1,293,555 = 1,293,555/x
3. Step 3: Cross multiply
   864,674x = 1,293,555 × 1,293,555
4. Step 4: Simplify right side
   864,674x = 1,673,284,538,025
5. Step 5: Solve for x
   x = 1,673,284,538,025/864,674
6. Step 6: Final answer
   x = 1,935,162.31