Finding the Third Proportional to 375,441 and 816,978

Step by Step Solution

1. Step 1: Write the proportion equation
   375,441 : 816,978 = 816,978 : x
2. Step 2: Convert to fraction form
   375,441/816,978 = 816,978/x
3. Step 3: Cross multiply
   375,441x = 816,978 × 816,978
4. Step 4: Simplify right side
   375,441x = 667,453,052,484
5. Step 5: Solve for x
   x = 667,453,052,484/375,441
6. Step 6: Final answer
   x = 1,777,784.13