Finding the Third Proportional to 2,721,978 and 5,942,020

Step by Step Solution

1. Step 1: Write the proportion equation
   2,721,978 : 5,942,020 = 5,942,020 : x
2. Step 2: Convert to fraction form
   2,721,978/5,942,020 = 5,942,020/x
3. Step 3: Cross multiply
   2,721,978x = 5,942,020 × 5,942,020
4. Step 4: Simplify right side
   2,721,978x = 35,307,601,680,400
5. Step 5: Solve for x
   x = 35,307,601,680,400/2,721,978
6. Step 6: Final answer
   x = 12,971,303.10