Finding the Third Proportional to 1,274,724 and 2,798,280

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274,724 : 2,798,280 = 2,798,280 : x
2. Step 2: Convert to fraction form
   1,274,724/2,798,280 = 2,798,280/x
3. Step 3: Cross multiply
   1,274,724x = 2,798,280 × 2,798,280
4. Step 4: Simplify right side
   1,274,724x = 7,830,370,958,400
5. Step 5: Solve for x
   x = 7,830,370,958,400/1,274,724
6. Step 6: Final answer
   x = 6,142,797.15