Finding the Third Proportional to 822,384 and 1,290,372

Step by Step Solution

1. Step 1: Write the proportion equation
   822,384 : 1,290,372 = 1,290,372 : x
2. Step 2: Convert to fraction form
   822,384/1,290,372 = 1,290,372/x
3. Step 3: Cross multiply
   822,384x = 1,290,372 × 1,290,372
4. Step 4: Simplify right side
   822,384x = 1,665,059,898,384
5. Step 5: Solve for x
   x = 1,665,059,898,384/822,384
6. Step 6: Final answer
   x = 2,024,674.48