Finding the Third Proportional to 45,876 and 72,987

Step by Step Solution

1. Step 1: Write the proportion equation
   45,876 : 72,987 = 72,987 : x
2. Step 2: Convert to fraction form
   45,876/72,987 = 72,987/x
3. Step 3: Cross multiply
   45,876x = 72,987 × 72,987
4. Step 4: Simplify right side
   45,876x = 5,327,102,169
5. Step 5: Solve for x
   x = 5,327,102,169/45,876
6. Step 6: Final answer
   x = 116,119.59