Finding the Third Proportional to 1,399,178 and 2,966,512

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,178 : 2,966,512 = 2,966,512 : x
2. Step 2: Convert to fraction form
   1,399,178/2,966,512 = 2,966,512/x
3. Step 3: Cross multiply
   1,399,178x = 2,966,512 × 2,966,512
4. Step 4: Simplify right side
   1,399,178x = 8,800,193,446,144
5. Step 5: Solve for x
   x = 8,800,193,446,144/1,399,178
6. Step 6: Final answer
   x = 6,289,545.32