Finding the Third Proportional to 259,900,048,339.50 and 555,567,637,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   259,900,048,339.50 : 555,567,637,072.50 = 555,567,637,072.50 : x
2. Step 2: Convert to fraction form
   259,900,048,339.50/555,567,637,072.50 = 555,567,637,072.50/x
3. Step 3: Cross multiply
   259,900,048,339.50x = 555,567,637,072.50 × 555,567,637,072.50
4. Step 4: Simplify right side
   259,900,048,339.50x = 308,655,399,362,321,046,306,816
5. Step 5: Solve for x
   x = 308,655,399,362,321,046,306,816/259,900,048,339.50
6. Step 6: Final answer
   x = 1,187,592,697,016.87