Finding the Third Proportional to 139,853,082 and 218,903,814

Step by Step Solution

1. Step 1: Write the proportion equation
   139,853,082 : 218,903,814 = 218,903,814 : x
2. Step 2: Convert to fraction form
   139,853,082/218,903,814 = 218,903,814/x
3. Step 3: Cross multiply
   139,853,082x = 218,903,814 × 218,903,814
4. Step 4: Simplify right side
   139,853,082x = 47,918,879,783,746,592
5. Step 5: Solve for x
   x = 47,918,879,783,746,592/139,853,082
6. Step 6: Final answer
   x = 342,637,281.20