Finding the Third Proportional to 1,067,143 and 1,640,078

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067,143 : 1,640,078 = 1,640,078 : x
2. Step 2: Convert to fraction form
   1,067,143/1,640,078 = 1,640,078/x
3. Step 3: Cross multiply
   1,067,143x = 1,640,078 × 1,640,078
4. Step 4: Simplify right side
   1,067,143x = 2,689,855,846,084
5. Step 5: Solve for x
   x = 2,689,855,846,084/1,067,143
6. Step 6: Final answer
   x = 2,520,614.24