Finding the Third Proportional to 772,780 and 1,182,116

Step by Step Solution

1. Step 1: Write the proportion equation
   772,780 : 1,182,116 = 1,182,116 : x
2. Step 2: Convert to fraction form
   772,780/1,182,116 = 1,182,116/x
3. Step 3: Cross multiply
   772,780x = 1,182,116 × 1,182,116
4. Step 4: Simplify right side
   772,780x = 1,397,398,237,456
5. Step 5: Solve for x
   x = 1,397,398,237,456/772,780
6. Step 6: Final answer
   x = 1,808,274.33