Finding the Third Proportional to 369,142 and 804,978

Step by Step Solution

1. Step 1: Write the proportion equation
   369,142 : 804,978 = 804,978 : x
2. Step 2: Convert to fraction form
   369,142/804,978 = 804,978/x
3. Step 3: Cross multiply
   369,142x = 804,978 × 804,978
4. Step 4: Simplify right side
   369,142x = 647,989,580,484
5. Step 5: Solve for x
   x = 647,989,580,484/369,142
6. Step 6: Final answer
   x = 1,755,393.81