Finding the Third Proportional to 56,396,886 and 123,540,204

Step by Step Solution

1. Step 1: Write the proportion equation
   56,396,886 : 123,540,204 = 123,540,204 : x
2. Step 2: Convert to fraction form
   56,396,886/123,540,204 = 123,540,204/x
3. Step 3: Cross multiply
   56,396,886x = 123,540,204 × 123,540,204
4. Step 4: Simplify right side
   56,396,886x = 15,262,182,004,361,616
5. Step 5: Solve for x
   x = 15,262,182,004,361,616/56,396,886
6. Step 6: Final answer
   x = 270,621,005.64