Finding the Third Proportional to 86,463.75 and 189,330

Step by Step Solution

1. Step 1: Write the proportion equation
   86,463.75 : 189,330 = 189,330 : x
2. Step 2: Convert to fraction form
   86,463.75/189,330 = 189,330/x
3. Step 3: Cross multiply
   86,463.75x = 189,330 × 189,330
4. Step 4: Simplify right side
   86,463.75x = 35,845,848,900
5. Step 5: Solve for x
   x = 35,845,848,900/86,463.75
6. Step 6: Final answer
   x = 414,576.62