Finding the Third Proportional to 517,234.50 and 804,648

Step by Step Solution

1. Step 1: Write the proportion equation
   517,234.50 : 804,648 = 804,648 : x
2. Step 2: Convert to fraction form
   517,234.50/804,648 = 804,648/x
3. Step 3: Cross multiply
   517,234.50x = 804,648 × 804,648
4. Step 4: Simplify right side
   517,234.50x = 647,458,403,904
5. Step 5: Solve for x
   x = 647,458,403,904/517,234.50
6. Step 6: Final answer
   x = 1,251,769.56