Finding the Third Proportional to 5,239,720 and 8,331,960

Step by Step Solution

1. Step 1: Write the proportion equation
   5,239,720 : 8,331,960 = 8,331,960 : x
2. Step 2: Convert to fraction form
   5,239,720/8,331,960 = 8,331,960/x
3. Step 3: Cross multiply
   5,239,720x = 8,331,960 × 8,331,960
4. Step 4: Simplify right side
   5,239,720x = 69,421,557,441,600
5. Step 5: Solve for x
   x = 69,421,557,441,600/5,239,720
6. Step 6: Final answer
   x = 13,249,096.79