Finding the Third Proportional to 564,678 and 804,930.75

Step by Step Solution

1. Step 1: Write the proportion equation
   564,678 : 804,930.75 = 804,930.75 : x
2. Step 2: Convert to fraction form
   564,678/804,930.75 = 804,930.75/x
3. Step 3: Cross multiply
   564,678x = 804,930.75 × 804,930.75
4. Step 4: Simplify right side
   564,678x = 647,913,512,295.56
5. Step 5: Solve for x
   x = 647,913,512,295.56/564,678
6. Step 6: Final answer
   x = 1,147,403.50