Finding the Third Proportional to 664,520 and 1,003,692

Step by Step Solution

1. Step 1: Write the proportion equation
   664,520 : 1,003,692 = 1,003,692 : x
2. Step 2: Convert to fraction form
   664,520/1,003,692 = 1,003,692/x
3. Step 3: Cross multiply
   664,520x = 1,003,692 × 1,003,692
4. Step 4: Simplify right side
   664,520x = 1,007,397,630,864
5. Step 5: Solve for x
   x = 1,007,397,630,864/664,520
6. Step 6: Final answer
   x = 1,515,977.90