Finding the Third Proportional to 103,659,409 and 239,978,089

Step by Step Solution

1. Step 1: Write the proportion equation
   103,659,409 : 239,978,089 = 239,978,089 : x
2. Step 2: Convert to fraction form
   103,659,409/239,978,089 = 239,978,089/x
3. Step 3: Cross multiply
   103,659,409x = 239,978,089 × 239,978,089
4. Step 4: Simplify right side
   103,659,409x = 57,589,483,200,091,920
5. Step 5: Solve for x
   x = 57,589,483,200,091,920/103,659,409
6. Step 6: Final answer
   x = 555,564,456.29