Finding the Third Proportional to 9,678,906 and 13,152,851

Step by Step Solution

1. Step 1: Write the proportion equation
   9,678,906 : 13,152,851 = 13,152,851 : x
2. Step 2: Convert to fraction form
   9,678,906/13,152,851 = 13,152,851/x
3. Step 3: Cross multiply
   9,678,906x = 13,152,851 × 13,152,851
4. Step 4: Simplify right side
   9,678,906x = 172,997,489,428,201
5. Step 5: Solve for x
   x = 172,997,489,428,201/9,678,906
6. Step 6: Final answer
   x = 17,873,661.49