Finding the Third Proportional to 819,469 and 1,788,374

Step by Step Solution

1. Step 1: Write the proportion equation
   819,469 : 1,788,374 = 1,788,374 : x
2. Step 2: Convert to fraction form
   819,469/1,788,374 = 1,788,374/x
3. Step 3: Cross multiply
   819,469x = 1,788,374 × 1,788,374
4. Step 4: Simplify right side
   819,469x = 3,198,281,563,876
5. Step 5: Solve for x
   x = 3,198,281,563,876/819,469
6. Step 6: Final answer
   x = 3,902,870.72