Finding the Third Proportional to 3,337,644 and 7,178,271

Step by Step Solution

1. Step 1: Write the proportion equation
   3,337,644 : 7,178,271 = 7,178,271 : x
2. Step 2: Convert to fraction form
   3,337,644/7,178,271 = 7,178,271/x
3. Step 3: Cross multiply
   3,337,644x = 7,178,271 × 7,178,271
4. Step 4: Simplify right side
   3,337,644x = 51,527,574,549,441
5. Step 5: Solve for x
   x = 51,527,574,549,441/3,337,644
6. Step 6: Final answer
   x = 15,438,307.55