Finding the Third Proportional to 67,090 and 137,093

Step by Step Solution

1. Step 1: Write the proportion equation
   67,090 : 137,093 = 137,093 : x
2. Step 2: Convert to fraction form
   67,090/137,093 = 137,093/x
3. Step 3: Cross multiply
   67,090x = 137,093 × 137,093
4. Step 4: Simplify right side
   67,090x = 18,794,490,649
5. Step 5: Solve for x
   x = 18,794,490,649/67,090
6. Step 6: Final answer
   x = 280,138.48