Finding the Third Proportional to 91,732 and 189,174

Step by Step Solution

1. Step 1: Write the proportion equation
   91,732 : 189,174 = 189,174 : x
2. Step 2: Convert to fraction form
   91,732/189,174 = 189,174/x
3. Step 3: Cross multiply
   91,732x = 189,174 × 189,174
4. Step 4: Simplify right side
   91,732x = 35,786,802,276
5. Step 5: Solve for x
   x = 35,786,802,276/91,732
6. Step 6: Final answer
   x = 390,123.43