Finding the Third Proportional to 837,990 and 1,808,856

Step by Step Solution

1. Step 1: Write the proportion equation
   837,990 : 1,808,856 = 1,808,856 : x
2. Step 2: Convert to fraction form
   837,990/1,808,856 = 1,808,856/x
3. Step 3: Cross multiply
   837,990x = 1,808,856 × 1,808,856
4. Step 4: Simplify right side
   837,990x = 3,271,960,028,736
5. Step 5: Solve for x
   x = 3,271,960,028,736/837,990
6. Step 6: Final answer
   x = 3,904,533.50