Finding the Third Proportional to 1,277,486 and 2,781,772

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277,486 : 2,781,772 = 2,781,772 : x
2. Step 2: Convert to fraction form
   1,277,486/2,781,772 = 2,781,772/x
3. Step 3: Cross multiply
   1,277,486x = 2,781,772 × 2,781,772
4. Step 4: Simplify right side
   1,277,486x = 7,738,255,459,984
5. Step 5: Solve for x
   x = 7,738,255,459,984/1,277,486
6. Step 6: Final answer
   x = 6,057,409.21