Finding the Third Proportional to 4,505,144 and 9,329,665

Step by Step Solution

1. Step 1: Write the proportion equation
   4,505,144 : 9,329,665 = 9,329,665 : x
2. Step 2: Convert to fraction form
   4,505,144/9,329,665 = 9,329,665/x
3. Step 3: Cross multiply
   4,505,144x = 9,329,665 × 9,329,665
4. Step 4: Simplify right side
   4,505,144x = 87,042,649,012,225
5. Step 5: Solve for x
   x = 87,042,649,012,225/4,505,144
6. Step 6: Final answer
   x = 19,320,725.16