Finding the Third Proportional to 9,144,148 and 19,664,648

Step by Step Solution

1. Step 1: Write the proportion equation
   9,144,148 : 19,664,648 = 19,664,648 : x
2. Step 2: Convert to fraction form
   9,144,148/19,664,648 = 19,664,648/x
3. Step 3: Cross multiply
   9,144,148x = 19,664,648 × 19,664,648
4. Step 4: Simplify right side
   9,144,148x = 386,698,380,963,904
5. Step 5: Solve for x
   x = 386,698,380,963,904/9,144,148
6. Step 6: Final answer
   x = 42,289,164.72