Finding the Third Proportional to 148,751,330 and 321,404,356

Step by Step Solution

1. Step 1: Write the proportion equation
   148,751,330 : 321,404,356 = 321,404,356 : x
2. Step 2: Convert to fraction form
   148,751,330/321,404,356 = 321,404,356/x
3. Step 3: Cross multiply
   148,751,330x = 321,404,356 × 321,404,356
4. Step 4: Simplify right side
   148,751,330x = 103,300,760,055,774,736
5. Step 5: Solve for x
   x = 103,300,760,055,774,736/148,751,330
6. Step 6: Final answer
   x = 694,452,681.91