Finding the Third Proportional to 4,176,178 and 9,119,372

Step by Step Solution

1. Step 1: Write the proportion equation
   4,176,178 : 9,119,372 = 9,119,372 : x
2. Step 2: Convert to fraction form
   4,176,178/9,119,372 = 9,119,372/x
3. Step 3: Cross multiply
   4,176,178x = 9,119,372 × 9,119,372
4. Step 4: Simplify right side
   4,176,178x = 83,162,945,674,384
5. Step 5: Solve for x
   x = 83,162,945,674,384/4,176,178
6. Step 6: Final answer
   x = 19,913,649.68