Finding the Third Proportional to 13,642,992 and 19,710,144

Step by Step Solution

1. Step 1: Write the proportion equation
   13,642,992 : 19,710,144 = 19,710,144 : x
2. Step 2: Convert to fraction form
   13,642,992/19,710,144 = 19,710,144/x
3. Step 3: Cross multiply
   13,642,992x = 19,710,144 × 19,710,144
4. Step 4: Simplify right side
   13,642,992x = 388,489,776,500,736
5. Step 5: Solve for x
   x = 388,489,776,500,736/13,642,992
6. Step 6: Final answer
   x = 28,475,408.95