Finding the Third Proportional to 9,637,144 and 13,215,132

Step by Step Solution

1. Step 1: Write the proportion equation
   9,637,144 : 13,215,132 = 13,215,132 : x
2. Step 2: Convert to fraction form
   9,637,144/13,215,132 = 13,215,132/x
3. Step 3: Cross multiply
   9,637,144x = 13,215,132 × 13,215,132
4. Step 4: Simplify right side
   9,637,144x = 174,639,713,777,424
5. Step 5: Solve for x
   x = 174,639,713,777,424/9,637,144
6. Step 6: Final answer
   x = 18,121,521.66