Finding the Third Proportional to 822,816 and 1,242,996

Step by Step Solution

1. Step 1: Write the proportion equation
   822,816 : 1,242,996 = 1,242,996 : x
2. Step 2: Convert to fraction form
   822,816/1,242,996 = 1,242,996/x
3. Step 3: Cross multiply
   822,816x = 1,242,996 × 1,242,996
4. Step 4: Simplify right side
   822,816x = 1,545,039,056,016
5. Step 5: Solve for x
   x = 1,545,039,056,016/822,816
6. Step 6: Final answer
   x = 1,877,745.52