Finding the Third Proportional to 1,277,490 and 2,781,780

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277,490 : 2,781,780 = 2,781,780 : x
2. Step 2: Convert to fraction form
   1,277,490/2,781,780 = 2,781,780/x
3. Step 3: Cross multiply
   1,277,490x = 2,781,780 × 2,781,780
4. Step 4: Simplify right side
   1,277,490x = 7,738,299,968,400
5. Step 5: Solve for x
   x = 7,738,299,968,400/1,277,490
6. Step 6: Final answer
   x = 6,057,425.08