Finding the Third Proportional to 144,281.50 and 215,614

Step by Step Solution

1. Step 1: Write the proportion equation
   144,281.50 : 215,614 = 215,614 : x
2. Step 2: Convert to fraction form
   144,281.50/215,614 = 215,614/x
3. Step 3: Cross multiply
   144,281.50x = 215,614 × 215,614
4. Step 4: Simplify right side
   144,281.50x = 46,489,396,996
5. Step 5: Solve for x
   x = 46,489,396,996/144,281.50
6. Step 6: Final answer
   x = 322,213.15