Finding the Third Proportional to 72,339 and 156,707

Step by Step Solution

1. Step 1: Write the proportion equation
   72,339 : 156,707 = 156,707 : x
2. Step 2: Convert to fraction form
   72,339/156,707 = 156,707/x
3. Step 3: Cross multiply
   72,339x = 156,707 × 156,707
4. Step 4: Simplify right side
   72,339x = 24,557,083,849
5. Step 5: Solve for x
   x = 24,557,083,849/72,339
6. Step 6: Final answer
   x = 339,472.26