Finding the Third Proportional to 2,589,853 and 5,639,489

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589,853 : 5,639,489 = 5,639,489 : x
2. Step 2: Convert to fraction form
   2,589,853/5,639,489 = 5,639,489/x
3. Step 3: Cross multiply
   2,589,853x = 5,639,489 × 5,639,489
4. Step 4: Simplify right side
   2,589,853x = 31,803,836,181,121
5. Step 5: Solve for x
   x = 31,803,836,181,121/2,589,853
6. Step 6: Final answer
   x = 12,280,170.41