Finding the Third Proportional to 72,175.50 and 173,877.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,175.50 : 173,877.75 = 173,877.75 : x
2. Step 2: Convert to fraction form
   72,175.50/173,877.75 = 173,877.75/x
3. Step 3: Cross multiply
   72,175.50x = 173,877.75 × 173,877.75
4. Step 4: Simplify right side
   72,175.50x = 30,233,471,945.06
5. Step 5: Solve for x
   x = 30,233,471,945.06/72,175.50
6. Step 6: Final answer
   x = 418,888.29