Finding the Third Proportional to 103,659,399 and 239,978,064

Step by Step Solution

1. Step 1: Write the proportion equation
   103,659,399 : 239,978,064 = 239,978,064 : x
2. Step 2: Convert to fraction form
   103,659,399/239,978,064 = 239,978,064/x
3. Step 3: Cross multiply
   103,659,399x = 239,978,064 × 239,978,064
4. Step 4: Simplify right side
   103,659,399x = 57,589,471,201,188,096
5. Step 5: Solve for x
   x = 57,589,471,201,188,096/103,659,399
6. Step 6: Final answer
   x = 555,564,394.13