Finding the Third Proportional to 1,292,288 and 2,649,056

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292,288 : 2,649,056 = 2,649,056 : x
2. Step 2: Convert to fraction form
   1,292,288/2,649,056 = 2,649,056/x
3. Step 3: Cross multiply
   1,292,288x = 2,649,056 × 2,649,056
4. Step 4: Simplify right side
   1,292,288x = 7,017,497,691,136
5. Step 5: Solve for x
   x = 7,017,497,691,136/1,292,288
6. Step 6: Final answer
   x = 5,430,289.29