Finding the Third Proportional to 3,355,780 and 7,271,432

Step by Step Solution

1. Step 1: Write the proportion equation
   3,355,780 : 7,271,432 = 7,271,432 : x
2. Step 2: Convert to fraction form
   3,355,780/7,271,432 = 7,271,432/x
3. Step 3: Cross multiply
   3,355,780x = 7,271,432 × 7,271,432
4. Step 4: Simplify right side
   3,355,780x = 52,873,723,330,624
5. Step 5: Solve for x
   x = 52,873,723,330,624/3,355,780
6. Step 6: Final answer
   x = 15,756,015.99