Finding the Third Proportional to 850,861,218 and 1,850,802,180

Step by Step Solution

1. Step 1: Write the proportion equation
   850,861,218 : 1,850,802,180 = 1,850,802,180 : x
2. Step 2: Convert to fraction form
   850,861,218/1,850,802,180 = 1,850,802,180/x
3. Step 3: Cross multiply
   850,861,218x = 1,850,802,180 × 1,850,802,180
4. Step 4: Simplify right side
   850,861,218x = 3,425,468,709,492,752,384
5. Step 5: Solve for x
   x = 3,425,468,709,492,752,384/850,861,218
6. Step 6: Final answer
   x = 4,025,884,171.27