Finding the Third Proportional to 5,617,749 and 8,485,659

Step by Step Solution

1. Step 1: Write the proportion equation
   5,617,749 : 8,485,659 = 8,485,659 : x
2. Step 2: Convert to fraction form
   5,617,749/8,485,659 = 8,485,659/x
3. Step 3: Cross multiply
   5,617,749x = 8,485,659 × 8,485,659
4. Step 4: Simplify right side
   5,617,749x = 72,006,408,664,281
5. Step 5: Solve for x
   x = 72,006,408,664,281/5,617,749
6. Step 6: Final answer
   x = 12,817,662.14