Finding the Third Proportional to 71,503.50 and 141,208.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,503.50 : 141,208.50 = 141,208.50 : x
2. Step 2: Convert to fraction form
   71,503.50/141,208.50 = 141,208.50/x
3. Step 3: Cross multiply
   71,503.50x = 141,208.50 × 141,208.50
4. Step 4: Simplify right side
   71,503.50x = 19,939,840,472.25
5. Step 5: Solve for x
   x = 19,939,840,472.25/71,503.50
6. Step 6: Final answer
   x = 278,865.24