Finding the Third Proportional to 890,592 and 1,812,288

Step by Step Solution

1. Step 1: Write the proportion equation
   890,592 : 1,812,288 = 1,812,288 : x
2. Step 2: Convert to fraction form
   890,592/1,812,288 = 1,812,288/x
3. Step 3: Cross multiply
   890,592x = 1,812,288 × 1,812,288
4. Step 4: Simplify right side
   890,592x = 3,284,387,794,944
5. Step 5: Solve for x
   x = 3,284,387,794,944/890,592
6. Step 6: Final answer
   x = 3,687,870.31