Finding the Third Proportional to 890,613 and 1,812,330

Step by Step Solution

1. Step 1: Write the proportion equation
   890,613 : 1,812,330 = 1,812,330 : x
2. Step 2: Convert to fraction form
   890,613/1,812,330 = 1,812,330/x
3. Step 3: Cross multiply
   890,613x = 1,812,330 × 1,812,330
4. Step 4: Simplify right side
   890,613x = 3,284,540,028,900
5. Step 5: Solve for x
   x = 3,284,540,028,900/890,613
6. Step 6: Final answer
   x = 3,687,954.28