Finding the Third Proportional to 143,356.50 and 334,811

Step by Step Solution

1. Step 1: Write the proportion equation
   143,356.50 : 334,811 = 334,811 : x
2. Step 2: Convert to fraction form
   143,356.50/334,811 = 334,811/x
3. Step 3: Cross multiply
   143,356.50x = 334,811 × 334,811
4. Step 4: Simplify right side
   143,356.50x = 112,098,405,721
5. Step 5: Solve for x
   x = 112,098,405,721/143,356.50
6. Step 6: Final answer
   x = 781,955.51