Finding the Third Proportional to 1,222,681 and 2,681,556

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,681 : 2,681,556 = 2,681,556 : x
2. Step 2: Convert to fraction form
   1,222,681/2,681,556 = 2,681,556/x
3. Step 3: Cross multiply
   1,222,681x = 2,681,556 × 2,681,556
4. Step 4: Simplify right side
   1,222,681x = 7,190,742,581,136
5. Step 5: Solve for x
   x = 7,190,742,581,136/1,222,681
6. Step 6: Final answer
   x = 5,881,127.28