Finding the Third Proportional to 2,138,427 and 2,826,616.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,427 : 2,826,616.50 = 2,826,616.50 : x
2. Step 2: Convert to fraction form
   2,138,427/2,826,616.50 = 2,826,616.50/x
3. Step 3: Cross multiply
   2,138,427x = 2,826,616.50 × 2,826,616.50
4. Step 4: Simplify right side
   2,138,427x = 7,989,760,838,072.25
5. Step 5: Solve for x
   x = 7,989,760,838,072.25/2,138,427
6. Step 6: Final answer
   x = 3,736,279.44