Finding the Third Proportional to 664,880 and 1,454,392

Step by Step Solution

1. Step 1: Write the proportion equation
   664,880 : 1,454,392 = 1,454,392 : x
2. Step 2: Convert to fraction form
   664,880/1,454,392 = 1,454,392/x
3. Step 3: Cross multiply
   664,880x = 1,454,392 × 1,454,392
4. Step 4: Simplify right side
   664,880x = 2,115,256,089,664
5. Step 5: Solve for x
   x = 2,115,256,089,664/664,880
6. Step 6: Final answer
   x = 3,181,410.31