Finding the Third Proportional to 266,538 and 629,203.50

Step by Step Solution

1. Step 1: Write the proportion equation
   266,538 : 629,203.50 = 629,203.50 : x
2. Step 2: Convert to fraction form
   266,538/629,203.50 = 629,203.50/x
3. Step 3: Cross multiply
   266,538x = 629,203.50 × 629,203.50
4. Step 4: Simplify right side
   266,538x = 395,897,044,412.25
5. Step 5: Solve for x
   x = 395,897,044,412.25/266,538
6. Step 6: Final answer
   x = 1,485,330.59