Finding the Third Proportional to 47,353.50 and 72,780

Step by Step Solution

1. Step 1: Write the proportion equation
   47,353.50 : 72,780 = 72,780 : x
2. Step 2: Convert to fraction form
   47,353.50/72,780 = 72,780/x
3. Step 3: Cross multiply
   47,353.50x = 72,780 × 72,780
4. Step 4: Simplify right side
   47,353.50x = 5,296,928,400
5. Step 5: Solve for x
   x = 5,296,928,400/47,353.50
6. Step 6: Final answer
   x = 111,859.28