Finding the Third Proportional to 324,142,929 and 709,760,965.50

Step by Step Solution

1. Step 1: Write the proportion equation
   324,142,929 : 709,760,965.50 = 709,760,965.50 : x
2. Step 2: Convert to fraction form
   324,142,929/709,760,965.50 = 709,760,965.50/x
3. Step 3: Cross multiply
   324,142,929x = 709,760,965.50 × 709,760,965.50
4. Step 4: Simplify right side
   324,142,929x = 503,760,628,147,492,160
5. Step 5: Solve for x
   x = 503,760,628,147,492,160/324,142,929
6. Step 6: Final answer
   x = 1,554,131,165.85