Finding the Third Proportional to 67,098 and 137,109

Step by Step Solution

1. Step 1: Write the proportion equation
   67,098 : 137,109 = 137,109 : x
2. Step 2: Convert to fraction form
   67,098/137,109 = 137,109/x
3. Step 3: Cross multiply
   67,098x = 137,109 × 137,109
4. Step 4: Simplify right side
   67,098x = 18,798,877,881
5. Step 5: Solve for x
   x = 18,798,877,881/67,098
6. Step 6: Final answer
   x = 280,170.47