Finding the Third Proportional to 3,676,434 and 8,078,589

Step by Step Solution

1. Step 1: Write the proportion equation
   3,676,434 : 8,078,589 = 8,078,589 : x
2. Step 2: Convert to fraction form
   3,676,434/8,078,589 = 8,078,589/x
3. Step 3: Cross multiply
   3,676,434x = 8,078,589 × 8,078,589
4. Step 4: Simplify right side
   3,676,434x = 65,263,600,230,921
5. Step 5: Solve for x
   x = 65,263,600,230,921/3,676,434
6. Step 6: Final answer
   x = 17,751,875.93