Finding the Third Proportional to 1,115,672 and 2,290,150

Step by Step Solution

1. Step 1: Write the proportion equation
   1,115,672 : 2,290,150 = 2,290,150 : x
2. Step 2: Convert to fraction form
   1,115,672/2,290,150 = 2,290,150/x
3. Step 3: Cross multiply
   1,115,672x = 2,290,150 × 2,290,150
4. Step 4: Simplify right side
   1,115,672x = 5,244,787,022,500
5. Step 5: Solve for x
   x = 5,244,787,022,500/1,115,672
6. Step 6: Final answer
   x = 4,701,011.61