Finding the Third Proportional to 2,162,020 and 4,590,720

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162,020 : 4,590,720 = 4,590,720 : x
2. Step 2: Convert to fraction form
   2,162,020/4,590,720 = 4,590,720/x
3. Step 3: Cross multiply
   2,162,020x = 4,590,720 × 4,590,720
4. Step 4: Simplify right side
   2,162,020x = 21,074,710,118,400
5. Step 5: Solve for x
   x = 21,074,710,118,400/2,162,020
6. Step 6: Final answer
   x = 9,747,694.34