Finding the Third Proportional to 5,451,617 and 8,440,300

Step by Step Solution

1. Step 1: Write the proportion equation
   5,451,617 : 8,440,300 = 8,440,300 : x
2. Step 2: Convert to fraction form
   5,451,617/8,440,300 = 8,440,300/x
3. Step 3: Cross multiply
   5,451,617x = 8,440,300 × 8,440,300
4. Step 4: Simplify right side
   5,451,617x = 71,238,664,090,000
5. Step 5: Solve for x
   x = 71,238,664,090,000/5,451,617
6. Step 6: Final answer
   x = 13,067,437.44