Finding the Third Proportional to 129,013.50 and 303,558

Step by Step Solution

1. Step 1: Write the proportion equation
   129,013.50 : 303,558 = 303,558 : x
2. Step 2: Convert to fraction form
   129,013.50/303,558 = 303,558/x
3. Step 3: Cross multiply
   129,013.50x = 303,558 × 303,558
4. Step 4: Simplify right side
   129,013.50x = 92,147,459,364
5. Step 5: Solve for x
   x = 92,147,459,364/129,013.50
6. Step 6: Final answer
   x = 714,246.64