Finding the Third Proportional to 139,515,061.50 and 325,866,618

Step by Step Solution

1. Step 1: Write the proportion equation
   139,515,061.50 : 325,866,618 = 325,866,618 : x
2. Step 2: Convert to fraction form
   139,515,061.50/325,866,618 = 325,866,618/x
3. Step 3: Cross multiply
   139,515,061.50x = 325,866,618 × 325,866,618
4. Step 4: Simplify right side
   139,515,061.50x = 106,189,052,726,757,920
5. Step 5: Solve for x
   x = 106,189,052,726,757,920/139,515,061.50
6. Step 6: Final answer
   x = 761,129,670.05