Finding the Third Proportional to 1,310,731 and 1,770,878

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310,731 : 1,770,878 = 1,770,878 : x
2. Step 2: Convert to fraction form
   1,310,731/1,770,878 = 1,770,878/x
3. Step 3: Cross multiply
   1,310,731x = 1,770,878 × 1,770,878
4. Step 4: Simplify right side
   1,310,731x = 3,136,008,890,884
5. Step 5: Solve for x
   x = 3,136,008,890,884/1,310,731
6. Step 6: Final answer
   x = 2,392,564.83