Finding the Third Proportional to 4,193,494 and 9,172,112

Step by Step Solution

1. Step 1: Write the proportion equation
   4,193,494 : 9,172,112 = 9,172,112 : x
2. Step 2: Convert to fraction form
   4,193,494/9,172,112 = 9,172,112/x
3. Step 3: Cross multiply
   4,193,494x = 9,172,112 × 9,172,112
4. Step 4: Simplify right side
   4,193,494x = 84,127,638,540,544
5. Step 5: Solve for x
   x = 84,127,638,540,544/4,193,494
6. Step 6: Final answer
   x = 20,061,466.30