Finding the Third Proportional to 656,067,620.25 and 1,338,530,128.31

Step by Step Solution

1. Step 1: Write the proportion equation
   656,067,620.25 : 1,338,530,128.31 = 1,338,530,128.31 : x
2. Step 2: Convert to fraction form
   656,067,620.25/1,338,530,128.31 = 1,338,530,128.31/x
3. Step 3: Cross multiply
   656,067,620.25x = 1,338,530,128.31 × 1,338,530,128.31
4. Step 4: Simplify right side
   656,067,620.25x = 1,791,662,904,400,277,760
5. Step 5: Solve for x
   x = 1,791,662,904,400,277,760/656,067,620.25
6. Step 6: Final answer
   x = 2,730,911,950.38