Finding the Third Proportional to 67,049.63 and 139,610.63

Step by Step Solution

1. Step 1: Write the proportion equation
   67,049.63 : 139,610.63 = 139,610.63 : x
2. Step 2: Convert to fraction form
   67,049.63/139,610.63 = 139,610.63/x
3. Step 3: Cross multiply
   67,049.63x = 139,610.63 × 139,610.63
4. Step 4: Simplify right side
   67,049.63x = 19,491,126,612.89
5. Step 5: Solve for x
   x = 19,491,126,612.89/67,049.63
6. Step 6: Final answer
   x = 290,697.03