Finding the Third Proportional to 162,534.50 and 215,665

Step by Step Solution

1. Step 1: Write the proportion equation
   162,534.50 : 215,665 = 215,665 : x
2. Step 2: Convert to fraction form
   162,534.50/215,665 = 215,665/x
3. Step 3: Cross multiply
   162,534.50x = 215,665 × 215,665
4. Step 4: Simplify right side
   162,534.50x = 46,511,392,225
5. Step 5: Solve for x
   x = 46,511,392,225/162,534.50
6. Step 6: Final answer
   x = 286,163.20