Finding the Third Proportional to 19,510,964 and 42,018,658

Step by Step Solution

1. Step 1: Write the proportion equation
   19,510,964 : 42,018,658 = 42,018,658 : x
2. Step 2: Convert to fraction form
   19,510,964/42,018,658 = 42,018,658/x
3. Step 3: Cross multiply
   19,510,964x = 42,018,658 × 42,018,658
4. Step 4: Simplify right side
   19,510,964x = 1,765,567,620,120,964
5. Step 5: Solve for x
   x = 1,765,567,620,120,964/19,510,964
6. Step 6: Final answer
   x = 90,491,050.06