Finding the Third Proportional to 1,242,126 and 2,661,309

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,126 : 2,661,309 = 2,661,309 : x
2. Step 2: Convert to fraction form
   1,242,126/2,661,309 = 2,661,309/x
3. Step 3: Cross multiply
   1,242,126x = 2,661,309 × 2,661,309
4. Step 4: Simplify right side
   1,242,126x = 7,082,565,593,481
5. Step 5: Solve for x
   x = 7,082,565,593,481/1,242,126
6. Step 6: Final answer
   x = 5,701,970.33