Finding the Third Proportional to 143,350.50 and 215,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,350.50 : 215,002.50 = 215,002.50 : x
2. Step 2: Convert to fraction form
   143,350.50/215,002.50 = 215,002.50/x
3. Step 3: Cross multiply
   143,350.50x = 215,002.50 × 215,002.50
4. Step 4: Simplify right side
   143,350.50x = 46,226,075,006.25
5. Step 5: Solve for x
   x = 46,226,075,006.25/143,350.50
6. Step 6: Final answer
   x = 322,468.88