Finding the Third Proportional to 3,384,412 and 7,386,178

Step by Step Solution

1. Step 1: Write the proportion equation
   3,384,412 : 7,386,178 = 7,386,178 : x
2. Step 2: Convert to fraction form
   3,384,412/7,386,178 = 7,386,178/x
3. Step 3: Cross multiply
   3,384,412x = 7,386,178 × 7,386,178
4. Step 4: Simplify right side
   3,384,412x = 54,555,625,447,684
5. Step 5: Solve for x
   x = 54,555,625,447,684/3,384,412
6. Step 6: Final answer
   x = 16,119,676.16