Finding the Third Proportional to 19,618,868 and 42,236,110

Step by Step Solution

1. Step 1: Write the proportion equation
   19,618,868 : 42,236,110 = 42,236,110 : x
2. Step 2: Convert to fraction form
   19,618,868/42,236,110 = 42,236,110/x
3. Step 3: Cross multiply
   19,618,868x = 42,236,110 × 42,236,110
4. Step 4: Simplify right side
   19,618,868x = 1,783,888,987,932,100
5. Step 5: Solve for x
   x = 1,783,888,987,932,100/19,618,868
6. Step 6: Final answer
   x = 90,927,212.92