Finding the Third Proportional to 589,851 and 1,290,089

Step by Step Solution

1. Step 1: Write the proportion equation
   589,851 : 1,290,089 = 1,290,089 : x
2. Step 2: Convert to fraction form
   589,851/1,290,089 = 1,290,089/x
3. Step 3: Cross multiply
   589,851x = 1,290,089 × 1,290,089
4. Step 4: Simplify right side
   589,851x = 1,664,329,627,921
5. Step 5: Solve for x
   x = 1,664,329,627,921/589,851
6. Step 6: Final answer
   x = 2,821,610.25