Finding the Third Proportional to 335,664,940 and 518,404,008

Step by Step Solution

1. Step 1: Write the proportion equation
   335,664,940 : 518,404,008 = 518,404,008 : x
2. Step 2: Convert to fraction form
   335,664,940/518,404,008 = 518,404,008/x
3. Step 3: Cross multiply
   335,664,940x = 518,404,008 × 518,404,008
4. Step 4: Simplify right side
   335,664,940x = 268,742,715,510,464,064
5. Step 5: Solve for x
   x = 268,742,715,510,464,064/335,664,940
6. Step 6: Final answer
   x = 800,627,898.49