Finding the Third Proportional to 71,490.38 and 141,185.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,490.38 : 141,185.25 = 141,185.25 : x
2. Step 2: Convert to fraction form
   71,490.38/141,185.25 = 141,185.25/x
3. Step 3: Cross multiply
   71,490.38x = 141,185.25 × 141,185.25
4. Step 4: Simplify right side
   71,490.38x = 19,933,274,817.56
5. Step 5: Solve for x
   x = 19,933,274,817.56/71,490.38
6. Step 6: Final answer
   x = 278,824.59