Finding the Third Proportional to 19,383,729 and 42,288,258

Step by Step Solution

1. Step 1: Write the proportion equation
   19,383,729 : 42,288,258 = 42,288,258 : x
2. Step 2: Convert to fraction form
   19,383,729/42,288,258 = 42,288,258/x
3. Step 3: Cross multiply
   19,383,729x = 42,288,258 × 42,288,258
4. Step 4: Simplify right side
   19,383,729x = 1,788,296,764,674,564
5. Step 5: Solve for x
   x = 1,788,296,764,674,564/19,383,729
6. Step 6: Final answer
   x = 92,257,623.12