Finding the Third Proportional to 589,860 and 1,290,108

Step by Step Solution

1. Step 1: Write the proportion equation
   589,860 : 1,290,108 = 1,290,108 : x
2. Step 2: Convert to fraction form
   589,860/1,290,108 = 1,290,108/x
3. Step 3: Cross multiply
   589,860x = 1,290,108 × 1,290,108
4. Step 4: Simplify right side
   589,860x = 1,664,378,651,664
5. Step 5: Solve for x
   x = 1,664,378,651,664/589,860
6. Step 6: Final answer
   x = 2,821,650.31