Finding the Third Proportional to 85,825.50 and 128,252

Step by Step Solution

1. Step 1: Write the proportion equation
   85,825.50 : 128,252 = 128,252 : x
2. Step 2: Convert to fraction form
   85,825.50/128,252 = 128,252/x
3. Step 3: Cross multiply
   85,825.50x = 128,252 × 128,252
4. Step 4: Simplify right side
   85,825.50x = 16,448,575,504
5. Step 5: Solve for x
   x = 16,448,575,504/85,825.50
6. Step 6: Final answer
   x = 191,651.38