Finding the Third Proportional to 1,861,732 and 4,008,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861,732 : 4,008,440 = 4,008,440 : x
2. Step 2: Convert to fraction form
   1,861,732/4,008,440 = 4,008,440/x
3. Step 3: Cross multiply
   1,861,732x = 4,008,440 × 4,008,440
4. Step 4: Simplify right side
   1,861,732x = 16,067,591,233,600
5. Step 5: Solve for x
   x = 16,067,591,233,600/1,861,732
6. Step 6: Final answer
   x = 8,630,453.38