Finding the Third Proportional to 1,311,360 and 1,979,088

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,360 : 1,979,088 = 1,979,088 : x
2. Step 2: Convert to fraction form
   1,311,360/1,979,088 = 1,979,088/x
3. Step 3: Cross multiply
   1,311,360x = 1,979,088 × 1,979,088
4. Step 4: Simplify right side
   1,311,360x = 3,916,789,311,744
5. Step 5: Solve for x
   x = 3,916,789,311,744/1,311,360
6. Step 6: Final answer
   x = 2,986,814.69