Finding the Third Proportional to 3,354,112 and 7,242,172

Step by Step Solution

1. Step 1: Write the proportion equation
   3,354,112 : 7,242,172 = 7,242,172 : x
2. Step 2: Convert to fraction form
   3,354,112/7,242,172 = 7,242,172/x
3. Step 3: Cross multiply
   3,354,112x = 7,242,172 × 7,242,172
4. Step 4: Simplify right side
   3,354,112x = 52,449,055,277,584
5. Step 5: Solve for x
   x = 52,449,055,277,584/3,354,112
6. Step 6: Final answer
   x = 15,637,240.28