Finding the Third Proportional to 1,407,918 and 2,111,922

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,918 : 2,111,922 = 2,111,922 : x
2. Step 2: Convert to fraction form
   1,407,918/2,111,922 = 2,111,922/x
3. Step 3: Cross multiply
   1,407,918x = 2,111,922 × 2,111,922
4. Step 4: Simplify right side
   1,407,918x = 4,460,214,534,084
5. Step 5: Solve for x
   x = 4,460,214,534,084/1,407,918
6. Step 6: Final answer
   x = 3,167,950.50