Finding the Third Proportional to 72,601.50 and 108,903

Step by Step Solution

1. Step 1: Write the proportion equation
   72,601.50 : 108,903 = 108,903 : x
2. Step 2: Convert to fraction form
   72,601.50/108,903 = 108,903/x
3. Step 3: Cross multiply
   72,601.50x = 108,903 × 108,903
4. Step 4: Simplify right side
   72,601.50x = 11,859,863,409
5. Step 5: Solve for x
   x = 11,859,863,409/72,601.50
6. Step 6: Final answer
   x = 163,355.63