Finding the Third Proportional to 145,429,809 and 311,015,010

Step by Step Solution

1. Step 1: Write the proportion equation
   145,429,809 : 311,015,010 = 311,015,010 : x
2. Step 2: Convert to fraction form
   145,429,809/311,015,010 = 311,015,010/x
3. Step 3: Cross multiply
   145,429,809x = 311,015,010 × 311,015,010
4. Step 4: Simplify right side
   145,429,809x = 96,730,336,445,300,096
5. Step 5: Solve for x
   x = 96,730,336,445,300,096/145,429,809
6. Step 6: Final answer
   x = 665,134,177.86