Finding the Third Proportional to 890,620 and 1,812,348

Step by Step Solution

1. Step 1: Write the proportion equation
   890,620 : 1,812,348 = 1,812,348 : x
2. Step 2: Convert to fraction form
   890,620/1,812,348 = 1,812,348/x
3. Step 3: Cross multiply
   890,620x = 1,812,348 × 1,812,348
4. Step 4: Simplify right side
   890,620x = 3,284,605,273,104
5. Step 5: Solve for x
   x = 3,284,605,273,104/890,620
6. Step 6: Final answer
   x = 3,687,998.56