Finding the Third Proportional to 49,907 and 72,999

Step by Step Solution

1. Step 1: Write the proportion equation
   49,907 : 72,999 = 72,999 : x
2. Step 2: Convert to fraction form
   49,907/72,999 = 72,999/x
3. Step 3: Cross multiply
   49,907x = 72,999 × 72,999
4. Step 4: Simplify right side
   49,907x = 5,328,854,001
5. Step 5: Solve for x
   x = 5,328,854,001/49,907
6. Step 6: Final answer
   x = 106,775.68