Finding the Third Proportional to 259,367,078 and 555,802,168

Step by Step Solution

1. Step 1: Write the proportion equation
   259,367,078 : 555,802,168 = 555,802,168 : x
2. Step 2: Convert to fraction form
   259,367,078/555,802,168 = 555,802,168/x
3. Step 3: Cross multiply
   259,367,078x = 555,802,168 × 555,802,168
4. Step 4: Simplify right side
   259,367,078x = 308,916,049,953,500,224
5. Step 5: Solve for x
   x = 308,916,049,953,500,224/259,367,078
6. Step 6: Final answer
   x = 1,191,038,015.83