Finding the Third Proportional to 589,400 and 1,286,760

Step by Step Solution

1. Step 1: Write the proportion equation
   589,400 : 1,286,760 = 1,286,760 : x
2. Step 2: Convert to fraction form
   589,400/1,286,760 = 1,286,760/x
3. Step 3: Cross multiply
   589,400x = 1,286,760 × 1,286,760
4. Step 4: Simplify right side
   589,400x = 1,655,751,297,600
5. Step 5: Solve for x
   x = 1,655,751,297,600/589,400
6. Step 6: Final answer
   x = 2,809,214.96