Finding the Third Proportional to 375,222 and 816,540

Step by Step Solution

1. Step 1: Write the proportion equation
   375,222 : 816,540 = 816,540 : x
2. Step 2: Convert to fraction form
   375,222/816,540 = 816,540/x
3. Step 3: Cross multiply
   375,222x = 816,540 × 816,540
4. Step 4: Simplify right side
   375,222x = 666,737,571,600
5. Step 5: Solve for x
   x = 666,737,571,600/375,222
6. Step 6: Final answer
   x = 1,776,914.92