Finding the Third Proportional to 86,232 and 128,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,232 : 128,818.50 = 128,818.50 : x
2. Step 2: Convert to fraction form
   86,232/128,818.50 = 128,818.50/x
3. Step 3: Cross multiply
   86,232x = 128,818.50 × 128,818.50
4. Step 4: Simplify right side
   86,232x = 16,594,205,942.25
5. Step 5: Solve for x
   x = 16,594,205,942.25/86,232
6. Step 6: Final answer
   x = 192,436.75