Finding the Third Proportional to 12,243,978 and 17,699,580

Step by Step Solution

1. Step 1: Write the proportion equation
   12,243,978 : 17,699,580 = 17,699,580 : x
2. Step 2: Convert to fraction form
   12,243,978/17,699,580 = 17,699,580/x
3. Step 3: Cross multiply
   12,243,978x = 17,699,580 × 17,699,580
4. Step 4: Simplify right side
   12,243,978x = 313,275,132,176,400
5. Step 5: Solve for x
   x = 313,275,132,176,400/12,243,978
6. Step 6: Final answer
   x = 25,586,058.07