Finding the Third Proportional to 142,071 and 220,576.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,071 : 220,576.50 = 220,576.50 : x
2. Step 2: Convert to fraction form
   142,071/220,576.50 = 220,576.50/x
3. Step 3: Cross multiply
   142,071x = 220,576.50 × 220,576.50
4. Step 4: Simplify right side
   142,071x = 48,653,992,352.25
5. Step 5: Solve for x
   x = 48,653,992,352.25/142,071
6. Step 6: Final answer
   x = 342,462.52