Finding the Third Proportional to 47,916 and 72,540

Step by Step Solution

1. Step 1: Write the proportion equation
   47,916 : 72,540 = 72,540 : x
2. Step 2: Convert to fraction form
   47,916/72,540 = 72,540/x
3. Step 3: Cross multiply
   47,916x = 72,540 × 72,540
4. Step 4: Simplify right side
   47,916x = 5,262,051,600
5. Step 5: Solve for x
   x = 5,262,051,600/47,916
6. Step 6: Final answer
   x = 109,818.26