Finding the Third Proportional to 8,172,654 and 17,939,388

Step by Step Solution

1. Step 1: Write the proportion equation
   8,172,654 : 17,939,388 = 17,939,388 : x
2. Step 2: Convert to fraction form
   8,172,654/17,939,388 = 17,939,388/x
3. Step 3: Cross multiply
   8,172,654x = 17,939,388 × 17,939,388
4. Step 4: Simplify right side
   8,172,654x = 321,821,641,814,544
5. Step 5: Solve for x
   x = 321,821,641,814,544/8,172,654
6. Step 6: Final answer
   x = 39,377,862.05