Finding the Third Proportional to 2,115,084 and 4,372,440

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,084 : 4,372,440 = 4,372,440 : x
2. Step 2: Convert to fraction form
   2,115,084/4,372,440 = 4,372,440/x
3. Step 3: Cross multiply
   2,115,084x = 4,372,440 × 4,372,440
4. Step 4: Simplify right side
   2,115,084x = 19,118,231,553,600
5. Step 5: Solve for x
   x = 19,118,231,553,600/2,115,084
6. Step 6: Final answer
   x = 9,038,993.98