Finding the Third Proportional to 3,781,342 and 8,297,390

Step by Step Solution

1. Step 1: Write the proportion equation
   3,781,342 : 8,297,390 = 8,297,390 : x
2. Step 2: Convert to fraction form
   3,781,342/8,297,390 = 8,297,390/x
3. Step 3: Cross multiply
   3,781,342x = 8,297,390 × 8,297,390
4. Step 4: Simplify right side
   3,781,342x = 68,846,680,812,100
5. Step 5: Solve for x
   x = 68,846,680,812,100/3,781,342
6. Step 6: Final answer
   x = 18,206,943.68