Finding the Third Proportional to 1,274,720 and 2,798,272

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274,720 : 2,798,272 = 2,798,272 : x
2. Step 2: Convert to fraction form
   1,274,720/2,798,272 = 2,798,272/x
3. Step 3: Cross multiply
   1,274,720x = 2,798,272 × 2,798,272
4. Step 4: Simplify right side
   1,274,720x = 7,830,326,185,984
5. Step 5: Solve for x
   x = 7,830,326,185,984/1,274,720
6. Step 6: Final answer
   x = 6,142,781.31