Finding the Third Proportional to 50,623.50 and 80,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,623.50 : 80,456.50 = 80,456.50 : x
2. Step 2: Convert to fraction form
   50,623.50/80,456.50 = 80,456.50/x
3. Step 3: Cross multiply
   50,623.50x = 80,456.50 × 80,456.50
4. Step 4: Simplify right side
   50,623.50x = 6,473,248,392.25
5. Step 5: Solve for x
   x = 6,473,248,392.25/50,623.50
6. Step 6: Final answer
   x = 127,870.42