Finding the Third Proportional to 1,865,436 and 3,986,832

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865,436 : 3,986,832 = 3,986,832 : x
2. Step 2: Convert to fraction form
   1,865,436/3,986,832 = 3,986,832/x
3. Step 3: Cross multiply
   1,865,436x = 3,986,832 × 3,986,832
4. Step 4: Simplify right side
   1,865,436x = 15,894,829,396,224
5. Step 5: Solve for x
   x = 15,894,829,396,224/1,865,436
6. Step 6: Final answer
   x = 8,520,704.76