Finding the Third Proportional to 3,432,768 and 7,405,120

Step by Step Solution

1. Step 1: Write the proportion equation
   3,432,768 : 7,405,120 = 7,405,120 : x
2. Step 2: Convert to fraction form
   3,432,768/7,405,120 = 7,405,120/x
3. Step 3: Cross multiply
   3,432,768x = 7,405,120 × 7,405,120
4. Step 4: Simplify right side
   3,432,768x = 54,835,802,214,400
5. Step 5: Solve for x
   x = 54,835,802,214,400/3,432,768
6. Step 6: Final answer
   x = 15,974,223.20