Finding the Third Proportional to 335,664,942 and 518,404,012

Step by Step Solution

1. Step 1: Write the proportion equation
   335,664,942 : 518,404,012 = 518,404,012 : x
2. Step 2: Convert to fraction form
   335,664,942/518,404,012 = 518,404,012/x
3. Step 3: Cross multiply
   335,664,942x = 518,404,012 × 518,404,012
4. Step 4: Simplify right side
   335,664,942x = 268,742,719,657,696,128
5. Step 5: Solve for x
   x = 268,742,719,657,696,128/335,664,942
6. Step 6: Final answer
   x = 800,627,906.08