Finding the Third Proportional to 19,498,986 and 42,252,228

Step by Step Solution

1. Step 1: Write the proportion equation
   19,498,986 : 42,252,228 = 42,252,228 : x
2. Step 2: Convert to fraction form
   19,498,986/42,252,228 = 42,252,228/x
3. Step 3: Cross multiply
   19,498,986x = 42,252,228 × 42,252,228
4. Step 4: Simplify right side
   19,498,986x = 1,785,250,770,963,984
5. Step 5: Solve for x
   x = 1,785,250,770,963,984/19,498,986
6. Step 6: Final answer
   x = 91,556,082.50