Finding the Third Proportional to 143,140.50 and 214,704

Step by Step Solution

1. Step 1: Write the proportion equation
   143,140.50 : 214,704 = 214,704 : x
2. Step 2: Convert to fraction form
   143,140.50/214,704 = 214,704/x
3. Step 3: Cross multiply
   143,140.50x = 214,704 × 214,704
4. Step 4: Simplify right side
   143,140.50x = 46,097,807,616
5. Step 5: Solve for x
   x = 46,097,807,616/143,140.50
6. Step 6: Final answer
   x = 322,045.88