Finding the Third Proportional to 4,787,967 and 7,622,286

Step by Step Solution

1. Step 1: Write the proportion equation
   4,787,967 : 7,622,286 = 7,622,286 : x
2. Step 2: Convert to fraction form
   4,787,967/7,622,286 = 7,622,286/x
3. Step 3: Cross multiply
   4,787,967x = 7,622,286 × 7,622,286
4. Step 4: Simplify right side
   4,787,967x = 58,099,243,865,796
5. Step 5: Solve for x
   x = 58,099,243,865,796/4,787,967
6. Step 6: Final answer
   x = 12,134,428.63