Finding the Third Proportional to 822,446 and 1,290,470

Step by Step Solution

1. Step 1: Write the proportion equation
   822,446 : 1,290,470 = 1,290,470 : x
2. Step 2: Convert to fraction form
   822,446/1,290,470 = 1,290,470/x
3. Step 3: Cross multiply
   822,446x = 1,290,470 × 1,290,470
4. Step 4: Simplify right side
   822,446x = 1,665,312,820,900
5. Step 5: Solve for x
   x = 1,665,312,820,900/822,446
6. Step 6: Final answer
   x = 2,024,829.38