Finding the Third Proportional to 3,688,299 and 7,558,686

Step by Step Solution

1. Step 1: Write the proportion equation
   3,688,299 : 7,558,686 = 7,558,686 : x
2. Step 2: Convert to fraction form
   3,688,299/7,558,686 = 7,558,686/x
3. Step 3: Cross multiply
   3,688,299x = 7,558,686 × 7,558,686
4. Step 4: Simplify right side
   3,688,299x = 57,133,734,046,596
5. Step 5: Solve for x
   x = 57,133,734,046,596/3,688,299
6. Step 6: Final answer
   x = 15,490,537.52