Finding the Third Proportional to 1,198,280 and 2,606,512

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198,280 : 2,606,512 = 2,606,512 : x
2. Step 2: Convert to fraction form
   1,198,280/2,606,512 = 2,606,512/x
3. Step 3: Cross multiply
   1,198,280x = 2,606,512 × 2,606,512
4. Step 4: Simplify right side
   1,198,280x = 6,793,904,806,144
5. Step 5: Solve for x
   x = 6,793,904,806,144/1,198,280
6. Step 6: Final answer
   x = 5,669,713.93