Finding the Third Proportional to 19,465,708 and 42,009,138

Step by Step Solution

1. Step 1: Write the proportion equation
   19,465,708 : 42,009,138 = 42,009,138 : x
2. Step 2: Convert to fraction form
   19,465,708/42,009,138 = 42,009,138/x
3. Step 3: Cross multiply
   19,465,708x = 42,009,138 × 42,009,138
4. Step 4: Simplify right side
   19,465,708x = 1,764,767,675,503,044
5. Step 5: Solve for x
   x = 1,764,767,675,503,044/19,465,708
6. Step 6: Final answer
   x = 90,660,338.45