Finding the Third Proportional to 5,185,736 and 7,850,172

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185,736 : 7,850,172 = 7,850,172 : x
2. Step 2: Convert to fraction form
   5,185,736/7,850,172 = 7,850,172/x
3. Step 3: Cross multiply
   5,185,736x = 7,850,172 × 7,850,172
4. Step 4: Simplify right side
   5,185,736x = 61,625,200,429,584
5. Step 5: Solve for x
   x = 61,625,200,429,584/5,185,736
6. Step 6: Final answer
   x = 11,883,597.71