Finding the Third Proportional to 1,861,730 and 4,008,436

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861,730 : 4,008,436 = 4,008,436 : x
2. Step 2: Convert to fraction form
   1,861,730/4,008,436 = 4,008,436/x
3. Step 3: Cross multiply
   1,861,730x = 4,008,436 × 4,008,436
4. Step 4: Simplify right side
   1,861,730x = 16,067,559,166,096
5. Step 5: Solve for x
   x = 16,067,559,166,096/1,861,730
6. Step 6: Final answer
   x = 8,630,445.43