Finding the Third Proportional to 630,834 and 1,401,636

Step by Step Solution

1. Step 1: Write the proportion equation
   630,834 : 1,401,636 = 1,401,636 : x
2. Step 2: Convert to fraction form
   630,834/1,401,636 = 1,401,636/x
3. Step 3: Cross multiply
   630,834x = 1,401,636 × 1,401,636
4. Step 4: Simplify right side
   630,834x = 1,964,583,476,496
5. Step 5: Solve for x
   x = 1,964,583,476,496/630,834
6. Step 6: Final answer
   x = 3,114,263.78