Finding the Third Proportional to 19,510,998 and 42,018,718

Step by Step Solution

1. Step 1: Write the proportion equation
   19,510,998 : 42,018,718 = 42,018,718 : x
2. Step 2: Convert to fraction form
   19,510,998/42,018,718 = 42,018,718/x
3. Step 3: Cross multiply
   19,510,998x = 42,018,718 × 42,018,718
4. Step 4: Simplify right side
   19,510,998x = 1,765,572,662,363,524
5. Step 5: Solve for x
   x = 1,765,572,662,363,524/19,510,998
6. Step 6: Final answer
   x = 90,491,150.80