Finding the Third Proportional to 822,111 and 1,291,446

Step by Step Solution

1. Step 1: Write the proportion equation
   822,111 : 1,291,446 = 1,291,446 : x
2. Step 2: Convert to fraction form
   822,111/1,291,446 = 1,291,446/x
3. Step 3: Cross multiply
   822,111x = 1,291,446 × 1,291,446
4. Step 4: Simplify right side
   822,111x = 1,667,832,770,916
5. Step 5: Solve for x
   x = 1,667,832,770,916/822,111
6. Step 6: Final answer
   x = 2,028,719.69