Finding the Third Proportional to 2,639,451 and 5,783,418

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,451 : 5,783,418 = 5,783,418 : x
2. Step 2: Convert to fraction form
   2,639,451/5,783,418 = 5,783,418/x
3. Step 3: Cross multiply
   2,639,451x = 5,783,418 × 5,783,418
4. Step 4: Simplify right side
   2,639,451x = 33,447,923,762,724
5. Step 5: Solve for x
   x = 33,447,923,762,724/2,639,451
6. Step 6: Final answer
   x = 12,672,303.36