Finding the Third Proportional to 780,778 and 1,807,334

Step by Step Solution

1. Step 1: Write the proportion equation
   780,778 : 1,807,334 = 1,807,334 : x
2. Step 2: Convert to fraction form
   780,778/1,807,334 = 1,807,334/x
3. Step 3: Cross multiply
   780,778x = 1,807,334 × 1,807,334
4. Step 4: Simplify right side
   780,778x = 3,266,456,187,556
5. Step 5: Solve for x
   x = 3,266,456,187,556/780,778
6. Step 6: Final answer
   x = 4,183,591.48