Finding the Third Proportional to 1,242,120 and 2,661,307

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,120 : 2,661,307 = 2,661,307 : x
2. Step 2: Convert to fraction form
   1,242,120/2,661,307 = 2,661,307/x
3. Step 3: Cross multiply
   1,242,120x = 2,661,307 × 2,661,307
4. Step 4: Simplify right side
   1,242,120x = 7,082,554,948,249
5. Step 5: Solve for x
   x = 7,082,554,948,249/1,242,120
6. Step 6: Final answer
   x = 5,701,989.30