Finding the Third Proportional to 19,510,967 and 42,018,664

Step by Step Solution

1. Step 1: Write the proportion equation
   19,510,967 : 42,018,664 = 42,018,664 : x
2. Step 2: Convert to fraction form
   19,510,967/42,018,664 = 42,018,664/x
3. Step 3: Cross multiply
   19,510,967x = 42,018,664 × 42,018,664
4. Step 4: Simplify right side
   19,510,967x = 1,765,568,124,344,896
5. Step 5: Solve for x
   x = 1,765,568,124,344,896/19,510,967
6. Step 6: Final answer
   x = 90,491,061.99