Finding the Third Proportional to 589,812 and 1,279,488

Step by Step Solution

1. Step 1: Write the proportion equation
   589,812 : 1,279,488 = 1,279,488 : x
2. Step 2: Convert to fraction form
   589,812/1,279,488 = 1,279,488/x
3. Step 3: Cross multiply
   589,812x = 1,279,488 × 1,279,488
4. Step 4: Simplify right side
   589,812x = 1,637,089,542,144
5. Step 5: Solve for x
   x = 1,637,089,542,144/589,812
6. Step 6: Final answer
   x = 2,775,612.47