Finding the Third Proportional to 4,038,276 and 8,644,198

Step by Step Solution

1. Step 1: Write the proportion equation
   4,038,276 : 8,644,198 = 8,644,198 : x
2. Step 2: Convert to fraction form
   4,038,276/8,644,198 = 8,644,198/x
3. Step 3: Cross multiply
   4,038,276x = 8,644,198 × 8,644,198
4. Step 4: Simplify right side
   4,038,276x = 74,722,159,063,204
5. Step 5: Solve for x
   x = 74,722,159,063,204/4,038,276
6. Step 6: Final answer
   x = 18,503,479.97