Finding the Third Proportional to 19,519,518 and 42,399,213

Step by Step Solution

1. Step 1: Write the proportion equation
   19,519,518 : 42,399,213 = 42,399,213 : x
2. Step 2: Convert to fraction form
   19,519,518/42,399,213 = 42,399,213/x
3. Step 3: Cross multiply
   19,519,518x = 42,399,213 × 42,399,213
4. Step 4: Simplify right side
   19,519,518x = 1,797,693,263,019,369
5. Step 5: Solve for x
   x = 1,797,693,263,019,369/19,519,518
6. Step 6: Final answer
   x = 92,097,215.87