Finding the Third Proportional to 890,590 and 1,812,284

Step by Step Solution

1. Step 1: Write the proportion equation
   890,590 : 1,812,284 = 1,812,284 : x
2. Step 2: Convert to fraction form
   890,590/1,812,284 = 1,812,284/x
3. Step 3: Cross multiply
   890,590x = 1,812,284 × 1,812,284
4. Step 4: Simplify right side
   890,590x = 3,284,373,296,656
5. Step 5: Solve for x
   x = 3,284,373,296,656/890,590
6. Step 6: Final answer
   x = 3,687,862.31