Finding the Third Proportional to 199,440,322 and 298,061,258

Step by Step Solution

1. Step 1: Write the proportion equation
   199,440,322 : 298,061,258 = 298,061,258 : x
2. Step 2: Convert to fraction form
   199,440,322/298,061,258 = 298,061,258/x
3. Step 3: Cross multiply
   199,440,322x = 298,061,258 × 298,061,258
4. Step 4: Simplify right side
   199,440,322x = 88,840,513,520,542,560
5. Step 5: Solve for x
   x = 88,840,513,520,542,560/199,440,322
6. Step 6: Final answer
   x = 445,449,107.93