Finding the Third Proportional to 132,421.50 and 189,168

Step by Step Solution

1. Step 1: Write the proportion equation
   132,421.50 : 189,168 = 189,168 : x
2. Step 2: Convert to fraction form
   132,421.50/189,168 = 189,168/x
3. Step 3: Cross multiply
   132,421.50x = 189,168 × 189,168
4. Step 4: Simplify right side
   132,421.50x = 35,784,532,224
5. Step 5: Solve for x
   x = 35,784,532,224/132,421.50
6. Step 6: Final answer
   x = 270,232.04