Finding the Third Proportional to 664,512 and 1,003,680

Step by Step Solution

1. Step 1: Write the proportion equation
   664,512 : 1,003,680 = 1,003,680 : x
2. Step 2: Convert to fraction form
   664,512/1,003,680 = 1,003,680/x
3. Step 3: Cross multiply
   664,512x = 1,003,680 × 1,003,680
4. Step 4: Simplify right side
   664,512x = 1,007,373,542,400
5. Step 5: Solve for x
   x = 1,007,373,542,400/664,512
6. Step 6: Final answer
   x = 1,515,959.90