Finding the Third Proportional to 143,953.50 and 334,645.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,953.50 : 334,645.50 = 334,645.50 : x
2. Step 2: Convert to fraction form
   143,953.50/334,645.50 = 334,645.50/x
3. Step 3: Cross multiply
   143,953.50x = 334,645.50 × 334,645.50
4. Step 4: Simplify right side
   143,953.50x = 111,987,610,670.25
5. Step 5: Solve for x
   x = 111,987,610,670.25/143,953.50
6. Step 6: Final answer
   x = 777,942.95