Finding the Third Proportional to 139,056.75 and 193,458.38

Step by Step Solution

1. Step 1: Write the proportion equation
   139,056.75 : 193,458.38 = 193,458.38 : x
2. Step 2: Convert to fraction form
   139,056.75/193,458.38 = 193,458.38/x
3. Step 3: Cross multiply
   139,056.75x = 193,458.38 × 193,458.38
4. Step 4: Simplify right side
   139,056.75x = 37,426,142,857.64
5. Step 5: Solve for x
   x = 37,426,142,857.64/139,056.75
6. Step 6: Final answer
   x = 269,142.94