Finding the Third Proportional to 1,405,832 and 2,178,732

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,832 : 2,178,732 = 2,178,732 : x
2. Step 2: Convert to fraction form
   1,405,832/2,178,732 = 2,178,732/x
3. Step 3: Cross multiply
   1,405,832x = 2,178,732 × 2,178,732
4. Step 4: Simplify right side
   1,405,832x = 4,746,873,127,824
5. Step 5: Solve for x
   x = 4,746,873,127,824/1,405,832
6. Step 6: Final answer
   x = 3,376,557.89