Finding the Third Proportional to 5,457,459 and 8,185,503

Step by Step Solution

1. Step 1: Write the proportion equation
   5,457,459 : 8,185,503 = 8,185,503 : x
2. Step 2: Convert to fraction form
   5,457,459/8,185,503 = 8,185,503/x
3. Step 3: Cross multiply
   5,457,459x = 8,185,503 × 8,185,503
4. Step 4: Simplify right side
   5,457,459x = 67,002,459,363,009
5. Step 5: Solve for x
   x = 67,002,459,363,009/5,457,459
6. Step 6: Final answer
   x = 12,277,226.34