Finding the Third Proportional to 3,388,440 and 7,440,432

Step by Step Solution

1. Step 1: Write the proportion equation
   3,388,440 : 7,440,432 = 7,440,432 : x
2. Step 2: Convert to fraction form
   3,388,440/7,440,432 = 7,440,432/x
3. Step 3: Cross multiply
   3,388,440x = 7,440,432 × 7,440,432
4. Step 4: Simplify right side
   3,388,440x = 55,360,028,346,624
5. Step 5: Solve for x
   x = 55,360,028,346,624/3,388,440
6. Step 6: Final answer
   x = 16,337,910.17