Finding the Third Proportional to 1,242,121 and 2,661,306

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,121 : 2,661,306 = 2,661,306 : x
2. Step 2: Convert to fraction form
   1,242,121/2,661,306 = 2,661,306/x
3. Step 3: Cross multiply
   1,242,121x = 2,661,306 × 2,661,306
4. Step 4: Simplify right side
   1,242,121x = 7,082,549,625,636
5. Step 5: Solve for x
   x = 7,082,549,625,636/1,242,121
6. Step 6: Final answer
   x = 5,701,980.42