Finding the Third Proportional to 664,852 and 1,368,908

Step by Step Solution

1. Step 1: Write the proportion equation
   664,852 : 1,368,908 = 1,368,908 : x
2. Step 2: Convert to fraction form
   664,852/1,368,908 = 1,368,908/x
3. Step 3: Cross multiply
   664,852x = 1,368,908 × 1,368,908
4. Step 4: Simplify right side
   664,852x = 1,873,909,112,464
5. Step 5: Solve for x
   x = 1,873,909,112,464/664,852
6. Step 6: Final answer
   x = 2,818,535.72