Finding the Third Proportional to 1,018,777 and 1,378,697

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,777 : 1,378,697 = 1,378,697 : x
2. Step 2: Convert to fraction form
   1,018,777/1,378,697 = 1,378,697/x
3. Step 3: Cross multiply
   1,018,777x = 1,378,697 × 1,378,697
4. Step 4: Simplify right side
   1,018,777x = 1,900,805,417,809
5. Step 5: Solve for x
   x = 1,900,805,417,809/1,018,777
6. Step 6: Final answer
   x = 1,865,771.82