Finding the Third Proportional to 82,763 and 128,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,763 : 128,383.50 = 128,383.50 : x
2. Step 2: Convert to fraction form
   82,763/128,383.50 = 128,383.50/x
3. Step 3: Cross multiply
   82,763x = 128,383.50 × 128,383.50
4. Step 4: Simplify right side
   82,763x = 16,482,323,072.25
5. Step 5: Solve for x
   x = 16,482,323,072.25/82,763
6. Step 6: Final answer
   x = 199,150.87