Finding the Third Proportional to 4,067,684 and 8,916,856

Step by Step Solution

1. Step 1: Write the proportion equation
   4,067,684 : 8,916,856 = 8,916,856 : x
2. Step 2: Convert to fraction form
   4,067,684/8,916,856 = 8,916,856/x
3. Step 3: Cross multiply
   4,067,684x = 8,916,856 × 8,916,856
4. Step 4: Simplify right side
   4,067,684x = 79,510,320,924,736
5. Step 5: Solve for x
   x = 79,510,320,924,736/4,067,684
6. Step 6: Final answer
   x = 19,546,828.35