Finding the Third Proportional to 19,854,886,143.75 and 42,542,332,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,854,886,143.75 : 42,542,332,480.50 = 42,542,332,480.50 : x
2. Step 2: Convert to fraction form
   19,854,886,143.75/42,542,332,480.50 = 42,542,332,480.50/x
3. Step 3: Cross multiply
   19,854,886,143.75x = 42,542,332,480.50 × 42,542,332,480.50
4. Step 4: Simplify right side
   19,854,886,143.75x = 1,809,850,052,881,405,181,952
5. Step 5: Solve for x
   x = 1,809,850,052,881,405,181,952/19,854,886,143.75
6. Step 6: Final answer
   x = 91,153,887,248.61