Finding the Third Proportional to 890,586 and 1,812,276

Step by Step Solution

1. Step 1: Write the proportion equation
   890,586 : 1,812,276 = 1,812,276 : x
2. Step 2: Convert to fraction form
   890,586/1,812,276 = 1,812,276/x
3. Step 3: Cross multiply
   890,586x = 1,812,276 × 1,812,276
4. Step 4: Simplify right side
   890,586x = 3,284,344,300,176
5. Step 5: Solve for x
   x = 3,284,344,300,176/890,586
6. Step 6: Final answer
   x = 3,687,846.32