Finding the Third Proportional to 138,889.69 and 235,846.69

Step by Step Solution

1. Step 1: Write the proportion equation
   138,889.69 : 235,846.69 = 235,846.69 : x
2. Step 2: Convert to fraction form
   138,889.69/235,846.69 = 235,846.69/x
3. Step 3: Cross multiply
   138,889.69x = 235,846.69 × 235,846.69
4. Step 4: Simplify right side
   138,889.69x = 55,623,660,004.72
5. Step 5: Solve for x
   x = 55,623,660,004.72/138,889.69
6. Step 6: Final answer
   x = 400,488.05