Finding the Third Proportional to 42,234.75 and 89,322.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,234.75 : 89,322.75 = 89,322.75 : x
2. Step 2: Convert to fraction form
   42,234.75/89,322.75 = 89,322.75/x
3. Step 3: Cross multiply
   42,234.75x = 89,322.75 × 89,322.75
4. Step 4: Simplify right side
   42,234.75x = 7,978,553,667.56
5. Step 5: Solve for x
   x = 7,978,553,667.56/42,234.75
6. Step 6: Final answer
   x = 188,909.69