Finding the Third Proportional to 1,311,066 and 3,090,510

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,066 : 3,090,510 = 3,090,510 : x
2. Step 2: Convert to fraction form
   1,311,066/3,090,510 = 3,090,510/x
3. Step 3: Cross multiply
   1,311,066x = 3,090,510 × 3,090,510
4. Step 4: Simplify right side
   1,311,066x = 9,551,252,060,100
5. Step 5: Solve for x
   x = 9,551,252,060,100/1,311,066
6. Step 6: Final answer
   x = 7,285,103.92