Finding the Third Proportional to 1,277,269 and 2,128,691

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277,269 : 2,128,691 = 2,128,691 : x
2. Step 2: Convert to fraction form
   1,277,269/2,128,691 = 2,128,691/x
3. Step 3: Cross multiply
   1,277,269x = 2,128,691 × 2,128,691
4. Step 4: Simplify right side
   1,277,269x = 4,531,325,373,481
5. Step 5: Solve for x
   x = 4,531,325,373,481/1,277,269
6. Step 6: Final answer
   x = 3,547,667.23