Finding the Third Proportional to 72,808.50 and 109,104.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,808.50 : 109,104.75 = 109,104.75 : x
2. Step 2: Convert to fraction form
   72,808.50/109,104.75 = 109,104.75/x
3. Step 3: Cross multiply
   72,808.50x = 109,104.75 × 109,104.75
4. Step 4: Simplify right side
   72,808.50x = 11,903,846,472.56
5. Step 5: Solve for x
   x = 11,903,846,472.56/72,808.50
6. Step 6: Final answer
   x = 163,495.29