Finding the Third Proportional to 42,228 and 91,152

Step by Step Solution

1. Step 1: Write the proportion equation
   42,228 : 91,152 = 91,152 : x
2. Step 2: Convert to fraction form
   42,228/91,152 = 91,152/x
3. Step 3: Cross multiply
   42,228x = 91,152 × 91,152
4. Step 4: Simplify right side
   42,228x = 8,308,687,104
5. Step 5: Solve for x
   x = 8,308,687,104/42,228
6. Step 6: Final answer
   x = 196,757.77