Finding the Third Proportional to 890,356 and 2,099,690

Step by Step Solution

1. Step 1: Write the proportion equation
   890,356 : 2,099,690 = 2,099,690 : x
2. Step 2: Convert to fraction form
   890,356/2,099,690 = 2,099,690/x
3. Step 3: Cross multiply
   890,356x = 2,099,690 × 2,099,690
4. Step 4: Simplify right side
   890,356x = 4,408,698,096,100
5. Step 5: Solve for x
   x = 4,408,698,096,100/890,356
6. Step 6: Final answer
   x = 4,951,612.72