Finding the Third Proportional to 138,055.25 and 301,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,055.25 : 301,958.50 = 301,958.50 : x
2. Step 2: Convert to fraction form
   138,055.25/301,958.50 = 301,958.50/x
3. Step 3: Cross multiply
   138,055.25x = 301,958.50 × 301,958.50
4. Step 4: Simplify right side
   138,055.25x = 91,178,935,722.25
5. Step 5: Solve for x
   x = 91,178,935,722.25/138,055.25
6. Step 6: Final answer
   x = 660,452.51