Finding the Third Proportional to 1,404,212 and 2,118,726

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,212 : 2,118,726 = 2,118,726 : x
2. Step 2: Convert to fraction form
   1,404,212/2,118,726 = 2,118,726/x
3. Step 3: Cross multiply
   1,404,212x = 2,118,726 × 2,118,726
4. Step 4: Simplify right side
   1,404,212x = 4,488,999,863,076
5. Step 5: Solve for x
   x = 4,488,999,863,076/1,404,212
6. Step 6: Final answer
   x = 3,196,810.64