Finding the Third Proportional to 139,159,018 and 274,805,441

Step by Step Solution

1. Step 1: Write the proportion equation
   139,159,018 : 274,805,441 = 274,805,441 : x
2. Step 2: Convert to fraction form
   139,159,018/274,805,441 = 274,805,441/x
3. Step 3: Cross multiply
   139,159,018x = 274,805,441 × 274,805,441
4. Step 4: Simplify right side
   139,159,018x = 75,518,030,403,204,480
5. Step 5: Solve for x
   x = 75,518,030,403,204,480/139,159,018
6. Step 6: Final answer
   x = 542,674,355.49