Finding the Third Proportional to 9,637,154 and 13,215,144

Step by Step Solution

1. Step 1: Write the proportion equation
   9,637,154 : 13,215,144 = 13,215,144 : x
2. Step 2: Convert to fraction form
   9,637,154/13,215,144 = 13,215,144/x
3. Step 3: Cross multiply
   9,637,154x = 13,215,144 × 13,215,144
4. Step 4: Simplify right side
   9,637,154x = 174,640,030,940,736
5. Step 5: Solve for x
   x = 174,640,030,940,736/9,637,154
6. Step 6: Final answer
   x = 18,121,535.77