Finding the Third Proportional to 846,648 and 1,296,945

Step by Step Solution

1. Step 1: Write the proportion equation
   846,648 : 1,296,945 = 1,296,945 : x
2. Step 2: Convert to fraction form
   846,648/1,296,945 = 1,296,945/x
3. Step 3: Cross multiply
   846,648x = 1,296,945 × 1,296,945
4. Step 4: Simplify right side
   846,648x = 1,682,066,333,025
5. Step 5: Solve for x
   x = 1,682,066,333,025/846,648
6. Step 6: Final answer
   x = 1,986,736.32