Finding the Third Proportional to 1,212,614 and 2,640,510

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212,614 : 2,640,510 = 2,640,510 : x
2. Step 2: Convert to fraction form
   1,212,614/2,640,510 = 2,640,510/x
3. Step 3: Cross multiply
   1,212,614x = 2,640,510 × 2,640,510
4. Step 4: Simplify right side
   1,212,614x = 6,972,293,060,100
5. Step 5: Solve for x
   x = 6,972,293,060,100/1,212,614
6. Step 6: Final answer
   x = 5,749,804.19