Finding the Third Proportional to 837,990 and 1,808,780

Step by Step Solution

1. Step 1: Write the proportion equation
   837,990 : 1,808,780 = 1,808,780 : x
2. Step 2: Convert to fraction form
   837,990/1,808,780 = 1,808,780/x
3. Step 3: Cross multiply
   837,990x = 1,808,780 × 1,808,780
4. Step 4: Simplify right side
   837,990x = 3,271,685,088,400
5. Step 5: Solve for x
   x = 3,271,685,088,400/837,990
6. Step 6: Final answer
   x = 3,904,205.41