Finding the Third Proportional to 772,778 and 1,659,818

Step by Step Solution

1. Step 1: Write the proportion equation
   772,778 : 1,659,818 = 1,659,818 : x
2. Step 2: Convert to fraction form
   772,778/1,659,818 = 1,659,818/x
3. Step 3: Cross multiply
   772,778x = 1,659,818 × 1,659,818
4. Step 4: Simplify right side
   772,778x = 2,754,995,793,124
5. Step 5: Solve for x
   x = 2,754,995,793,124/772,778
6. Step 6: Final answer
   x = 3,565,054.64