Finding the Third Proportional to 105,099,978 and 245,560,980

Step by Step Solution

1. Step 1: Write the proportion equation
   105,099,978 : 245,560,980 = 245,560,980 : x
2. Step 2: Convert to fraction form
   105,099,978/245,560,980 = 245,560,980/x
3. Step 3: Cross multiply
   105,099,978x = 245,560,980 × 245,560,980
4. Step 4: Simplify right side
   105,099,978x = 60,300,194,898,560,400
5. Step 5: Solve for x
   x = 60,300,194,898,560,400/105,099,978
6. Step 6: Final answer
   x = 573,741,270.42