Finding the Third Proportional to 777,738 and 1,199,799

Step by Step Solution

1. Step 1: Write the proportion equation
   777,738 : 1,199,799 = 1,199,799 : x
2. Step 2: Convert to fraction form
   777,738/1,199,799 = 1,199,799/x
3. Step 3: Cross multiply
   777,738x = 1,199,799 × 1,199,799
4. Step 4: Simplify right side
   777,738x = 1,439,517,640,401
5. Step 5: Solve for x
   x = 1,439,517,640,401/777,738
6. Step 6: Final answer
   x = 1,850,903.06