Finding the Third Proportional to 451,736 and 660,648

Step by Step Solution

1. Step 1: Write the proportion equation
   451,736 : 660,648 = 660,648 : x
2. Step 2: Convert to fraction form
   451,736/660,648 = 660,648/x
3. Step 3: Cross multiply
   451,736x = 660,648 × 660,648
4. Step 4: Simplify right side
   451,736x = 436,455,779,904
5. Step 5: Solve for x
   x = 436,455,779,904/451,736
6. Step 6: Final answer
   x = 966,174.45