Finding the Third Proportional to 8,412,123 and 18,300,471

Step by Step Solution

1. Step 1: Write the proportion equation
   8,412,123 : 18,300,471 = 18,300,471 : x
2. Step 2: Convert to fraction form
   8,412,123/18,300,471 = 18,300,471/x
3. Step 3: Cross multiply
   8,412,123x = 18,300,471 × 18,300,471
4. Step 4: Simplify right side
   8,412,123x = 334,907,238,821,841
5. Step 5: Solve for x
   x = 334,907,238,821,841/8,412,123
6. Step 6: Final answer
   x = 39,812,451.48