Finding the Third Proportional to 30,673.94 and 65,721.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,673.94 : 65,721.88 = 65,721.88 : x
2. Step 2: Convert to fraction form
   30,673.94/65,721.88 = 65,721.88/x
3. Step 3: Cross multiply
   30,673.94x = 65,721.88 × 65,721.88
4. Step 4: Simplify right side
   30,673.94x = 4,319,364,853.52
5. Step 5: Solve for x
   x = 4,319,364,853.52/30,673.94
6. Step 6: Final answer
   x = 140,815.47