Finding the Third Proportional to 268,134 and 558,319.50

Step by Step Solution

1. Step 1: Write the proportion equation
   268,134 : 558,319.50 = 558,319.50 : x
2. Step 2: Convert to fraction form
   268,134/558,319.50 = 558,319.50/x
3. Step 3: Cross multiply
   268,134x = 558,319.50 × 558,319.50
4. Step 4: Simplify right side
   268,134x = 311,720,664,080.25
5. Step 5: Solve for x
   x = 311,720,664,080.25/268,134
6. Step 6: Final answer
   x = 1,162,555.53