Finding the Third Proportional to 1,401,020 and 2,218,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401,020 : 2,218,820 = 2,218,820 : x
2. Step 2: Convert to fraction form
   1,401,020/2,218,820 = 2,218,820/x
3. Step 3: Cross multiply
   1,401,020x = 2,218,820 × 2,218,820
4. Step 4: Simplify right side
   1,401,020x = 4,923,162,192,400
5. Step 5: Solve for x
   x = 4,923,162,192,400/1,401,020
6. Step 6: Final answer
   x = 3,513,984.23