Finding the Third Proportional to 1,418,554,433,235 and 2,118,535,987,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,554,433,235 : 2,118,535,987,399.50 = 2,118,535,987,399.50 : x
2. Step 2: Convert to fraction form
   1,418,554,433,235/2,118,535,987,399.50 = 2,118,535,987,399.50/x
3. Step 3: Cross multiply
   1,418,554,433,235x = 2,118,535,987,399.50 × 2,118,535,987,399.50
4. Step 4: Simplify right side
   1,418,554,433,235x = 4,488,194,729,906,774,567,026,688
5. Step 5: Solve for x
   x = 4,488,194,729,906,774,567,026,688/1,418,554,433,235
6. Step 6: Final answer
   x = 3,163,921,401,078.34