Finding the Third Proportional to 824,402 and 1,808,212

Step by Step Solution

1. Step 1: Write the proportion equation
   824,402 : 1,808,212 = 1,808,212 : x
2. Step 2: Convert to fraction form
   824,402/1,808,212 = 1,808,212/x
3. Step 3: Cross multiply
   824,402x = 1,808,212 × 1,808,212
4. Step 4: Simplify right side
   824,402x = 3,269,630,636,944
5. Step 5: Solve for x
   x = 3,269,630,636,944/824,402
6. Step 6: Final answer
   x = 3,966,063.45