Finding the Third Proportional to 42,870 and 91,923

Step by Step Solution

1. Step 1: Write the proportion equation
   42,870 : 91,923 = 91,923 : x
2. Step 2: Convert to fraction form
   42,870/91,923 = 91,923/x
3. Step 3: Cross multiply
   42,870x = 91,923 × 91,923
4. Step 4: Simplify right side
   42,870x = 8,449,837,929
5. Step 5: Solve for x
   x = 8,449,837,929/42,870
6. Step 6: Final answer
   x = 197,103.75