Finding the Third Proportional to 2,178,660 and 3,194,742

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178,660 : 3,194,742 = 3,194,742 : x
2. Step 2: Convert to fraction form
   2,178,660/3,194,742 = 3,194,742/x
3. Step 3: Cross multiply
   2,178,660x = 3,194,742 × 3,194,742
4. Step 4: Simplify right side
   2,178,660x = 10,206,376,446,564
5. Step 5: Solve for x
   x = 10,206,376,446,564/2,178,660
6. Step 6: Final answer
   x = 4,684,703.65