Finding the Third Proportional to 143,328 and 334,695

Step by Step Solution

1. Step 1: Write the proportion equation
   143,328 : 334,695 = 334,695 : x
2. Step 2: Convert to fraction form
   143,328/334,695 = 334,695/x
3. Step 3: Cross multiply
   143,328x = 334,695 × 334,695
4. Step 4: Simplify right side
   143,328x = 112,020,743,025
5. Step 5: Solve for x
   x = 112,020,743,025/143,328
6. Step 6: Final answer
   x = 781,569.15