Finding the Third Proportional to 138,319.50 and 301,767

Step by Step Solution

1. Step 1: Write the proportion equation
   138,319.50 : 301,767 = 301,767 : x
2. Step 2: Convert to fraction form
   138,319.50/301,767 = 301,767/x
3. Step 3: Cross multiply
   138,319.50x = 301,767 × 301,767
4. Step 4: Simplify right side
   138,319.50x = 91,063,322,289
5. Step 5: Solve for x
   x = 91,063,322,289/138,319.50
6. Step 6: Final answer
   x = 658,354.91