Finding the Third Proportional to 3,858,042 and 8,380,284

Step by Step Solution

1. Step 1: Write the proportion equation
   3,858,042 : 8,380,284 = 8,380,284 : x
2. Step 2: Convert to fraction form
   3,858,042/8,380,284 = 8,380,284/x
3. Step 3: Cross multiply
   3,858,042x = 8,380,284 × 8,380,284
4. Step 4: Simplify right side
   3,858,042x = 70,229,159,920,656
5. Step 5: Solve for x
   x = 70,229,159,920,656/3,858,042
6. Step 6: Final answer
   x = 18,203,316.58