Finding the Third Proportional to 324,317,443.50 and 699,653,142

Step by Step Solution

1. Step 1: Write the proportion equation
   324,317,443.50 : 699,653,142 = 699,653,142 : x
2. Step 2: Convert to fraction form
   324,317,443.50/699,653,142 = 699,653,142/x
3. Step 3: Cross multiply
   324,317,443.50x = 699,653,142 × 699,653,142
4. Step 4: Simplify right side
   324,317,443.50x = 489,514,519,110,472,192
5. Step 5: Solve for x
   x = 489,514,519,110,472,192/324,317,443.50
6. Step 6: Final answer
   x = 1,509,368,456.50