Finding the Third Proportional to 858,162 and 1,851,212

Step by Step Solution

1. Step 1: Write the proportion equation
   858,162 : 1,851,212 = 1,851,212 : x
2. Step 2: Convert to fraction form
   858,162/1,851,212 = 1,851,212/x
3. Step 3: Cross multiply
   858,162x = 1,851,212 × 1,851,212
4. Step 4: Simplify right side
   858,162x = 3,426,985,868,944
5. Step 5: Solve for x
   x = 3,426,985,868,944/858,162
6. Step 6: Final answer
   x = 3,993,402.03