Finding the Third Proportional to 298,380,250 and 627,680,610

Step by Step Solution

1. Step 1: Write the proportion equation
   298,380,250 : 627,680,610 = 627,680,610 : x
2. Step 2: Convert to fraction form
   298,380,250/627,680,610 = 627,680,610/x
3. Step 3: Cross multiply
   298,380,250x = 627,680,610 × 627,680,610
4. Step 4: Simplify right side
   298,380,250x = 393,982,948,169,972,096
5. Step 5: Solve for x
   x = 393,982,948,169,972,096/298,380,250
6. Step 6: Final answer
   x = 1,320,405,583.71