Finding the Third Proportional to 3,493,692 and 7,407,288

Step by Step Solution

1. Step 1: Write the proportion equation
   3,493,692 : 7,407,288 = 7,407,288 : x
2. Step 2: Convert to fraction form
   3,493,692/7,407,288 = 7,407,288/x
3. Step 3: Cross multiply
   3,493,692x = 7,407,288 × 7,407,288
4. Step 4: Simplify right side
   3,493,692x = 54,867,915,514,944
5. Step 5: Solve for x
   x = 54,867,915,514,944/3,493,692
6. Step 6: Final answer
   x = 15,704,851.92