Finding the Third Proportional to 91,676 and 189,063

Step by Step Solution

1. Step 1: Write the proportion equation
   91,676 : 189,063 = 189,063 : x
2. Step 2: Convert to fraction form
   91,676/189,063 = 189,063/x
3. Step 3: Cross multiply
   91,676x = 189,063 × 189,063
4. Step 4: Simplify right side
   91,676x = 35,744,817,969
5. Step 5: Solve for x
   x = 35,744,817,969/91,676
6. Step 6: Final answer
   x = 389,903.77