Finding the Third Proportional to 906,811 and 1,985,990

Step by Step Solution

1. Step 1: Write the proportion equation
   906,811 : 1,985,990 = 1,985,990 : x
2. Step 2: Convert to fraction form
   906,811/1,985,990 = 1,985,990/x
3. Step 3: Cross multiply
   906,811x = 1,985,990 × 1,985,990
4. Step 4: Simplify right side
   906,811x = 3,944,156,280,100
5. Step 5: Solve for x
   x = 3,944,156,280,100/906,811
6. Step 6: Final answer
   x = 4,349,479.97