Finding the Third Proportional to 2,138,499 and 2,826,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,499 : 2,826,706.50 = 2,826,706.50 : x
2. Step 2: Convert to fraction form
   2,138,499/2,826,706.50 = 2,826,706.50/x
3. Step 3: Cross multiply
   2,138,499x = 2,826,706.50 × 2,826,706.50
4. Step 4: Simplify right side
   2,138,499x = 7,990,269,637,142.25
5. Step 5: Solve for x
   x = 7,990,269,637,142.25/2,138,499
6. Step 6: Final answer
   x = 3,736,391.57