Finding the Third Proportional to 388,771,082 and 856,786,084

Step by Step Solution

1. Step 1: Write the proportion equation
   388,771,082 : 856,786,084 = 856,786,084 : x
2. Step 2: Convert to fraction form
   388,771,082/856,786,084 = 856,786,084/x
3. Step 3: Cross multiply
   388,771,082x = 856,786,084 × 856,786,084
4. Step 4: Simplify right side
   388,771,082x = 734,082,393,736,055,040
5. Step 5: Solve for x
   x = 734,082,393,736,055,040/388,771,082
6. Step 6: Final answer
   x = 1,888,212,441.01