Finding the Third Proportional to 4,505,148 and 9,329,670

Step by Step Solution

1. Step 1: Write the proportion equation
   4,505,148 : 9,329,670 = 9,329,670 : x
2. Step 2: Convert to fraction form
   4,505,148/9,329,670 = 9,329,670/x
3. Step 3: Cross multiply
   4,505,148x = 9,329,670 × 9,329,670
4. Step 4: Simplify right side
   4,505,148x = 87,042,742,308,900
5. Step 5: Solve for x
   x = 87,042,742,308,900/4,505,148
6. Step 6: Final answer
   x = 19,320,728.71