Finding the Third Proportional to 1,015,209 and 2,143,170

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,209 : 2,143,170 = 2,143,170 : x
2. Step 2: Convert to fraction form
   1,015,209/2,143,170 = 2,143,170/x
3. Step 3: Cross multiply
   1,015,209x = 2,143,170 × 2,143,170
4. Step 4: Simplify right side
   1,015,209x = 4,593,177,648,900
5. Step 5: Solve for x
   x = 4,593,177,648,900/1,015,209
6. Step 6: Final answer
   x = 4,524,366.56