Finding the Third Proportional to 378,235.50 and 819,510

Step by Step Solution

1. Step 1: Write the proportion equation
   378,235.50 : 819,510 = 819,510 : x
2. Step 2: Convert to fraction form
   378,235.50/819,510 = 819,510/x
3. Step 3: Cross multiply
   378,235.50x = 819,510 × 819,510
4. Step 4: Simplify right side
   378,235.50x = 671,596,640,100
5. Step 5: Solve for x
   x = 671,596,640,100/378,235.50
6. Step 6: Final answer
   x = 1,775,604.46