Finding the Third Proportional to 48,760 and 72,820

Step by Step Solution

1. Step 1: Write the proportion equation
   48,760 : 72,820 = 72,820 : x
2. Step 2: Convert to fraction form
   48,760/72,820 = 72,820/x
3. Step 3: Cross multiply
   48,760x = 72,820 × 72,820
4. Step 4: Simplify right side
   48,760x = 5,302,752,400
5. Step 5: Solve for x
   x = 5,302,752,400/48,760
6. Step 6: Final answer
   x = 108,752.10