Finding the Third Proportional to 3,910,356 and 8,178,327

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910,356 : 8,178,327 = 8,178,327 : x
2. Step 2: Convert to fraction form
   3,910,356/8,178,327 = 8,178,327/x
3. Step 3: Cross multiply
   3,910,356x = 8,178,327 × 8,178,327
4. Step 4: Simplify right side
   3,910,356x = 66,885,032,518,929
5. Step 5: Solve for x
   x = 66,885,032,518,929/3,910,356
6. Step 6: Final answer
   x = 17,104,589.08