Finding the Third Proportional to 660,969 and 891,799

Step by Step Solution

1. Step 1: Write the proportion equation
   660,969 : 891,799 = 891,799 : x
2. Step 2: Convert to fraction form
   660,969/891,799 = 891,799/x
3. Step 3: Cross multiply
   660,969x = 891,799 × 891,799
4. Step 4: Simplify right side
   660,969x = 795,305,456,401
5. Step 5: Solve for x
   x = 795,305,456,401/660,969
6. Step 6: Final answer
   x = 1,203,241.69