Finding the Third Proportional to 215,795,004 and 315,499,842

Step by Step Solution

1. Step 1: Write the proportion equation
   215,795,004 : 315,499,842 = 315,499,842 : x
2. Step 2: Convert to fraction form
   215,795,004/315,499,842 = 315,499,842/x
3. Step 3: Cross multiply
   215,795,004x = 315,499,842 × 315,499,842
4. Step 4: Simplify right side
   215,795,004x = 99,540,150,302,024,960
5. Step 5: Solve for x
   x = 99,540,150,302,024,960/215,795,004
6. Step 6: Final answer
   x = 461,271,801.74