Finding the Third Proportional to 532,398 and 804,142

Step by Step Solution

1. Step 1: Write the proportion equation
   532,398 : 804,142 = 804,142 : x
2. Step 2: Convert to fraction form
   532,398/804,142 = 804,142/x
3. Step 3: Cross multiply
   532,398x = 804,142 × 804,142
4. Step 4: Simplify right side
   532,398x = 646,644,356,164
5. Step 5: Solve for x
   x = 646,644,356,164/532,398
6. Step 6: Final answer
   x = 1,214,588.25