Finding the Third Proportional to 3,836,280 and 8,311,083

Step by Step Solution

1. Step 1: Write the proportion equation
   3,836,280 : 8,311,083 = 8,311,083 : x
2. Step 2: Convert to fraction form
   3,836,280/8,311,083 = 8,311,083/x
3. Step 3: Cross multiply
   3,836,280x = 8,311,083 × 8,311,083
4. Step 4: Simplify right side
   3,836,280x = 69,074,100,632,889
5. Step 5: Solve for x
   x = 69,074,100,632,889/3,836,280
6. Step 6: Final answer
   x = 18,005,489.86