Finding the Third Proportional to 2,187,858 and 3,311,977.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187,858 : 3,311,977.50 = 3,311,977.50 : x
2. Step 2: Convert to fraction form
   2,187,858/3,311,977.50 = 3,311,977.50/x
3. Step 3: Cross multiply
   2,187,858x = 3,311,977.50 × 3,311,977.50
4. Step 4: Simplify right side
   2,187,858x = 10,969,194,960,506.25
5. Step 5: Solve for x
   x = 10,969,194,960,506.25/2,187,858
6. Step 6: Final answer
   x = 5,013,668.60