Finding the Third Proportional to 82,063.50 and 128,567.25

Step by Step Solution

1. Step 1: Write the proportion equation
   82,063.50 : 128,567.25 = 128,567.25 : x
2. Step 2: Convert to fraction form
   82,063.50/128,567.25 = 128,567.25/x
3. Step 3: Cross multiply
   82,063.50x = 128,567.25 × 128,567.25
4. Step 4: Simplify right side
   82,063.50x = 16,529,537,772.56
5. Step 5: Solve for x
   x = 16,529,537,772.56/82,063.50
6. Step 6: Final answer
   x = 201,423.75