Finding the Third Proportional to 1,121,738 and 1,740,222

Step by Step Solution

1. Step 1: Write the proportion equation
   1,121,738 : 1,740,222 = 1,740,222 : x
2. Step 2: Convert to fraction form
   1,121,738/1,740,222 = 1,740,222/x
3. Step 3: Cross multiply
   1,121,738x = 1,740,222 × 1,740,222
4. Step 4: Simplify right side
   1,121,738x = 3,028,372,609,284
5. Step 5: Solve for x
   x = 3,028,372,609,284/1,121,738
6. Step 6: Final answer
   x = 2,699,714.74