Finding the Third Proportional to 3,407,788 and 7,270,226

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407,788 : 7,270,226 = 7,270,226 : x
2. Step 2: Convert to fraction form
   3,407,788/7,270,226 = 7,270,226/x
3. Step 3: Cross multiply
   3,407,788x = 7,270,226 × 7,270,226
4. Step 4: Simplify right side
   3,407,788x = 52,856,186,091,076
5. Step 5: Solve for x
   x = 52,856,186,091,076/3,407,788
6. Step 6: Final answer
   x = 15,510,409.12