Finding the Third Proportional to 451,621.69 and 660,477.38

Step by Step Solution

1. Step 1: Write the proportion equation
   451,621.69 : 660,477.38 = 660,477.38 : x
2. Step 2: Convert to fraction form
   451,621.69/660,477.38 = 660,477.38/x
3. Step 3: Cross multiply
   451,621.69x = 660,477.38 × 660,477.38
4. Step 4: Simplify right side
   451,621.69x = 436,230,362,886.89
5. Step 5: Solve for x
   x = 436,230,362,886.89/451,621.69
6. Step 6: Final answer
   x = 965,919.87