Finding the Third Proportional to 67,048.88 and 139,609.13

Step by Step Solution

1. Step 1: Write the proportion equation
   67,048.88 : 139,609.13 = 139,609.13 : x
2. Step 2: Convert to fraction form
   67,048.88/139,609.13 = 139,609.13/x
3. Step 3: Cross multiply
   67,048.88x = 139,609.13 × 139,609.13
4. Step 4: Simplify right side
   67,048.88x = 19,490,707,783.27
5. Step 5: Solve for x
   x = 19,490,707,783.27/67,048.88
6. Step 6: Final answer
   x = 290,694.03