Finding the Third Proportional to 2,586,655.50 and 3,915,768

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,655.50 : 3,915,768 = 3,915,768 : x
2. Step 2: Convert to fraction form
   2,586,655.50/3,915,768 = 3,915,768/x
3. Step 3: Cross multiply
   2,586,655.50x = 3,915,768 × 3,915,768
4. Step 4: Simplify right side
   2,586,655.50x = 15,333,239,029,824
5. Step 5: Solve for x
   x = 15,333,239,029,824/2,586,655.50
6. Step 6: Final answer
   x = 5,927,824.18