Finding the Third Proportional to 681,998 and 993,012

Step by Step Solution

1. Step 1: Write the proportion equation
   681,998 : 993,012 = 993,012 : x
2. Step 2: Convert to fraction form
   681,998/993,012 = 993,012/x
3. Step 3: Cross multiply
   681,998x = 993,012 × 993,012
4. Step 4: Simplify right side
   681,998x = 986,072,832,144
5. Step 5: Solve for x
   x = 986,072,832,144/681,998
6. Step 6: Final answer
   x = 1,445,858.83