Finding the Third Proportional to 5,187,696 and 8,287,464

Step by Step Solution

1. Step 1: Write the proportion equation
   5,187,696 : 8,287,464 = 8,287,464 : x
2. Step 2: Convert to fraction form
   5,187,696/8,287,464 = 8,287,464/x
3. Step 3: Cross multiply
   5,187,696x = 8,287,464 × 8,287,464
4. Step 4: Simplify right side
   5,187,696x = 68,682,059,551,296
5. Step 5: Solve for x
   x = 68,682,059,551,296/5,187,696
6. Step 6: Final answer
   x = 13,239,414.87