Finding the Third Proportional to 30,837.75 and 72,099

Step by Step Solution

1. Step 1: Write the proportion equation
   30,837.75 : 72,099 = 72,099 : x
2. Step 2: Convert to fraction form
   30,837.75/72,099 = 72,099/x
3. Step 3: Cross multiply
   30,837.75x = 72,099 × 72,099
4. Step 4: Simplify right side
   30,837.75x = 5,198,265,801
5. Step 5: Solve for x
   x = 5,198,265,801/30,837.75
6. Step 6: Final answer
   x = 168,568.26