Finding the Third Proportional to 19,818,644 and 30,320,299

Step by Step Solution

1. Step 1: Write the proportion equation
   19,818,644 : 30,320,299 = 30,320,299 : x
2. Step 2: Convert to fraction form
   19,818,644/30,320,299 = 30,320,299/x
3. Step 3: Cross multiply
   19,818,644x = 30,320,299 × 30,320,299
4. Step 4: Simplify right side
   19,818,644x = 919,320,531,449,401
5. Step 5: Solve for x
   x = 919,320,531,449,401/19,818,644
6. Step 6: Final answer
   x = 46,386,651.45