Finding the Third Proportional to 139,793,082 and 218,816,150

Step by Step Solution

1. Step 1: Write the proportion equation
   139,793,082 : 218,816,150 = 218,816,150 : x
2. Step 2: Convert to fraction form
   139,793,082/218,816,150 = 218,816,150/x
3. Step 3: Cross multiply
   139,793,082x = 218,816,150 × 218,816,150
4. Step 4: Simplify right side
   139,793,082x = 47,880,507,500,822,496
5. Step 5: Solve for x
   x = 47,880,507,500,822,496/139,793,082
6. Step 6: Final answer
   x = 342,509,849.67