Finding the Third Proportional to 215,795,006 and 315,499,845

Step by Step Solution

1. Step 1: Write the proportion equation
   215,795,006 : 315,499,845 = 315,499,845 : x
2. Step 2: Convert to fraction form
   215,795,006/315,499,845 = 315,499,845/x
3. Step 3: Cross multiply
   215,795,006x = 315,499,845 × 315,499,845
4. Step 4: Simplify right side
   215,795,006x = 99,540,152,195,024,032
5. Step 5: Solve for x
   x = 99,540,152,195,024,032/215,795,006
6. Step 6: Final answer
   x = 461,271,806.24