Finding the Third Proportional to 664,965 and 1,053,116

Step by Step Solution

1. Step 1: Write the proportion equation
   664,965 : 1,053,116 = 1,053,116 : x
2. Step 2: Convert to fraction form
   664,965/1,053,116 = 1,053,116/x
3. Step 3: Cross multiply
   664,965x = 1,053,116 × 1,053,116
4. Step 4: Simplify right side
   664,965x = 1,109,053,309,456
5. Step 5: Solve for x
   x = 1,109,053,309,456/664,965
6. Step 6: Final answer
   x = 1,667,837.12