Finding the Third Proportional to 49,899 and 72,987

Step by Step Solution

1. Step 1: Write the proportion equation
   49,899 : 72,987 = 72,987 : x
2. Step 2: Convert to fraction form
   49,899/72,987 = 72,987/x
3. Step 3: Cross multiply
   49,899x = 72,987 × 72,987
4. Step 4: Simplify right side
   49,899x = 5,327,102,169
5. Step 5: Solve for x
   x = 5,327,102,169/49,899
6. Step 6: Final answer
   x = 106,757.69