Finding the Third Proportional to 3,721,100 and 5,603,430

Step by Step Solution

1. Step 1: Write the proportion equation
   3,721,100 : 5,603,430 = 5,603,430 : x
2. Step 2: Convert to fraction form
   3,721,100/5,603,430 = 5,603,430/x
3. Step 3: Cross multiply
   3,721,100x = 5,603,430 × 5,603,430
4. Step 4: Simplify right side
   3,721,100x = 31,398,427,764,900
5. Step 5: Solve for x
   x = 31,398,427,764,900/3,721,100
6. Step 6: Final answer
   x = 8,437,942.48