Finding the Third Proportional to 1,242,124 and 2,661,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,124 : 2,661,312 = 2,661,312 : x
2. Step 2: Convert to fraction form
   1,242,124/2,661,312 = 2,661,312/x
3. Step 3: Cross multiply
   1,242,124x = 2,661,312 × 2,661,312
4. Step 4: Simplify right side
   1,242,124x = 7,082,581,561,344
5. Step 5: Solve for x
   x = 7,082,581,561,344/1,242,124
6. Step 6: Final answer
   x = 5,701,992.36