Finding the Third Proportional to 163,845 and 254,505.38

Step by Step Solution

1. Step 1: Write the proportion equation
   163,845 : 254,505.38 = 254,505.38 : x
2. Step 2: Convert to fraction form
   163,845/254,505.38 = 254,505.38/x
3. Step 3: Cross multiply
   163,845x = 254,505.38 × 254,505.38
4. Step 4: Simplify right side
   163,845x = 64,772,985,903.89
5. Step 5: Solve for x
   x = 64,772,985,903.89/163,845
6. Step 6: Final answer
   x = 395,330.87