Finding the Third Proportional to 377,790 and 822,040

Step by Step Solution

1. Step 1: Write the proportion equation
   377,790 : 822,040 = 822,040 : x
2. Step 2: Convert to fraction form
   377,790/822,040 = 822,040/x
3. Step 3: Cross multiply
   377,790x = 822,040 × 822,040
4. Step 4: Simplify right side
   377,790x = 675,749,761,600
5. Step 5: Solve for x
   x = 675,749,761,600/377,790
6. Step 6: Final answer
   x = 1,788,691.50