Finding the Third Proportional to 143,350 and 215,002

Step by Step Solution

1. Step 1: Write the proportion equation
   143,350 : 215,002 = 215,002 : x
2. Step 2: Convert to fraction form
   143,350/215,002 = 215,002/x
3. Step 3: Cross multiply
   143,350x = 215,002 × 215,002
4. Step 4: Simplify right side
   143,350x = 46,225,860,004
5. Step 5: Solve for x
   x = 46,225,860,004/143,350
6. Step 6: Final answer
   x = 322,468.50