Finding the Third Proportional to 231,757.50 and 558,132

Step by Step Solution

1. Step 1: Write the proportion equation
   231,757.50 : 558,132 = 558,132 : x
2. Step 2: Convert to fraction form
   231,757.50/558,132 = 558,132/x
3. Step 3: Cross multiply
   231,757.50x = 558,132 × 558,132
4. Step 4: Simplify right side
   231,757.50x = 311,511,329,424
5. Step 5: Solve for x
   x = 311,511,329,424/231,757.50
6. Step 6: Final answer
   x = 1,344,126.21