Finding the Third Proportional to 125,631 and 265,234.50

Step by Step Solution

1. Step 1: Write the proportion equation
   125,631 : 265,234.50 = 265,234.50 : x
2. Step 2: Convert to fraction form
   125,631/265,234.50 = 265,234.50/x
3. Step 3: Cross multiply
   125,631x = 265,234.50 × 265,234.50
4. Step 4: Simplify right side
   125,631x = 70,349,339,990.25
5. Step 5: Solve for x
   x = 70,349,339,990.25/125,631
6. Step 6: Final answer
   x = 559,968.00