Finding the Third Proportional to 71,489.50 and 141,184.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,489.50 : 141,184.25 = 141,184.25 : x
2. Step 2: Convert to fraction form
   71,489.50/141,184.25 = 141,184.25/x
3. Step 3: Cross multiply
   71,489.50x = 141,184.25 × 141,184.25
4. Step 4: Simplify right side
   71,489.50x = 19,932,992,448.06
5. Step 5: Solve for x
   x = 19,932,992,448.06/71,489.50
6. Step 6: Final answer
   x = 278,824.06