Finding the Third Proportional to 5,186,689 and 8,333,616

Step by Step Solution

1. Step 1: Write the proportion equation
   5,186,689 : 8,333,616 = 8,333,616 : x
2. Step 2: Convert to fraction form
   5,186,689/8,333,616 = 8,333,616/x
3. Step 3: Cross multiply
   5,186,689x = 8,333,616 × 8,333,616
4. Step 4: Simplify right side
   5,186,689x = 69,449,155,635,456
5. Step 5: Solve for x
   x = 69,449,155,635,456/5,186,689
6. Step 6: Final answer
   x = 13,389,882.38