Finding the Third Proportional to 1,861,137 and 4,019,382

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861,137 : 4,019,382 = 4,019,382 : x
2. Step 2: Convert to fraction form
   1,861,137/4,019,382 = 4,019,382/x
3. Step 3: Cross multiply
   1,861,137x = 4,019,382 × 4,019,382
4. Step 4: Simplify right side
   1,861,137x = 16,155,431,661,924
5. Step 5: Solve for x
   x = 16,155,431,661,924/1,861,137
6. Step 6: Final answer
   x = 8,680,409.70