Finding the Third Proportional to 34,234 and 71,780

Step by Step Solution

1. Step 1: Write the proportion equation
   34,234 : 71,780 = 71,780 : x
2. Step 2: Convert to fraction form
   34,234/71,780 = 71,780/x
3. Step 3: Cross multiply
   34,234x = 71,780 × 71,780
4. Step 4: Simplify right side
   34,234x = 5,152,368,400
5. Step 5: Solve for x
   x = 5,152,368,400/34,234
6. Step 6: Final answer
   x = 150,504.42