Finding the Third Proportional to 443,376 and 664,152

Step by Step Solution

1. Step 1: Write the proportion equation
   443,376 : 664,152 = 664,152 : x
2. Step 2: Convert to fraction form
   443,376/664,152 = 664,152/x
3. Step 3: Cross multiply
   443,376x = 664,152 × 664,152
4. Step 4: Simplify right side
   443,376x = 441,097,879,104
5. Step 5: Solve for x
   x = 441,097,879,104/443,376
6. Step 6: Final answer
   x = 994,861.88