Finding the Third Proportional to 19,510,965 and 42,018,660

Step by Step Solution

1. Step 1: Write the proportion equation
   19,510,965 : 42,018,660 = 42,018,660 : x
2. Step 2: Convert to fraction form
   19,510,965/42,018,660 = 42,018,660/x
3. Step 3: Cross multiply
   19,510,965x = 42,018,660 × 42,018,660
4. Step 4: Simplify right side
   19,510,965x = 1,765,567,788,195,600
5. Step 5: Solve for x
   x = 1,765,567,788,195,600/19,510,965
6. Step 6: Final answer
   x = 90,491,054.04