Finding the Third Proportional to 265,998 and 406,951.50

Step by Step Solution

1. Step 1: Write the proportion equation
   265,998 : 406,951.50 = 406,951.50 : x
2. Step 2: Convert to fraction form
   265,998/406,951.50 = 406,951.50/x
3. Step 3: Cross multiply
   265,998x = 406,951.50 × 406,951.50
4. Step 4: Simplify right side
   265,998x = 165,609,523,352.25
5. Step 5: Solve for x
   x = 165,609,523,352.25/265,998
6. Step 6: Final answer
   x = 622,596.87