Finding the Third Proportional to 199,440,324 and 298,061,261

Step by Step Solution

1. Step 1: Write the proportion equation
   199,440,324 : 298,061,261 = 298,061,261 : x
2. Step 2: Convert to fraction form
   199,440,324/298,061,261 = 298,061,261/x
3. Step 3: Cross multiply
   199,440,324x = 298,061,261 × 298,061,261
4. Step 4: Simplify right side
   199,440,324x = 88,840,515,308,910,128
5. Step 5: Solve for x
   x = 88,840,515,308,910,128/199,440,324
6. Step 6: Final answer
   x = 445,449,112.43