Finding the Third Proportional to 148,751,118 and 321,403,958

Step by Step Solution

1. Step 1: Write the proportion equation
   148,751,118 : 321,403,958 = 321,403,958 : x
2. Step 2: Convert to fraction form
   148,751,118/321,403,958 = 321,403,958/x
3. Step 3: Cross multiply
   148,751,118x = 321,403,958 × 321,403,958
4. Step 4: Simplify right side
   148,751,118x = 103,300,504,218,065,760
5. Step 5: Solve for x
   x = 103,300,504,218,065,760/148,751,118
6. Step 6: Final answer
   x = 694,451,951.74