Finding the Third Proportional to 1,279,943 and 2,742,055

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,943 : 2,742,055 = 2,742,055 : x
2. Step 2: Convert to fraction form
   1,279,943/2,742,055 = 2,742,055/x
3. Step 3: Cross multiply
   1,279,943x = 2,742,055 × 2,742,055
4. Step 4: Simplify right side
   1,279,943x = 7,518,865,623,025
5. Step 5: Solve for x
   x = 7,518,865,623,025/1,279,943
6. Step 6: Final answer
   x = 5,874,375.36