Finding the Third Proportional to 1,289,191 and 2,807,764

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,191 : 2,807,764 = 2,807,764 : x
2. Step 2: Convert to fraction form
   1,289,191/2,807,764 = 2,807,764/x
3. Step 3: Cross multiply
   1,289,191x = 2,807,764 × 2,807,764
4. Step 4: Simplify right side
   1,289,191x = 7,883,538,679,696
5. Step 5: Solve for x
   x = 7,883,538,679,696/1,289,191
6. Step 6: Final answer
   x = 6,115,105.27