Finding the Third Proportional to 145,429,142 and 311,013,674

Step by Step Solution

1. Step 1: Write the proportion equation
   145,429,142 : 311,013,674 = 311,013,674 : x
2. Step 2: Convert to fraction form
   145,429,142/311,013,674 = 311,013,674/x
3. Step 3: Cross multiply
   145,429,142x = 311,013,674 × 311,013,674
4. Step 4: Simplify right side
   145,429,142x = 96,729,505,414,978,272
5. Step 5: Solve for x
   x = 96,729,505,414,978,272/145,429,142
6. Step 6: Final answer
   x = 665,131,514.12