Finding the Third Proportional to 58,845 and 128,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,845 : 128,693.50 = 128,693.50 : x
2. Step 2: Convert to fraction form
   58,845/128,693.50 = 128,693.50/x
3. Step 3: Cross multiply
   58,845x = 128,693.50 × 128,693.50
4. Step 4: Simplify right side
   58,845x = 16,562,016,942.25
5. Step 5: Solve for x
   x = 16,562,016,942.25/58,845
6. Step 6: Final answer
   x = 281,451.56