Finding the Third Proportional to 1,490,604 and 2,107,170

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490,604 : 2,107,170 = 2,107,170 : x
2. Step 2: Convert to fraction form
   1,490,604/2,107,170 = 2,107,170/x
3. Step 3: Cross multiply
   1,490,604x = 2,107,170 × 2,107,170
4. Step 4: Simplify right side
   1,490,604x = 4,440,165,408,900
5. Step 5: Solve for x
   x = 4,440,165,408,900/1,490,604
6. Step 6: Final answer
   x = 2,978,769.28