Finding the Third Proportional to 72,170.50 and 113,212

Step by Step Solution

1. Step 1: Write the proportion equation
   72,170.50 : 113,212 = 113,212 : x
2. Step 2: Convert to fraction form
   72,170.50/113,212 = 113,212/x
3. Step 3: Cross multiply
   72,170.50x = 113,212 × 113,212
4. Step 4: Simplify right side
   72,170.50x = 12,816,956,944
5. Step 5: Solve for x
   x = 12,816,956,944/72,170.50
6. Step 6: Final answer
   x = 177,592.74