Finding the Third Proportional to 2,503,288 and 5,139,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503,288 : 5,139,281.50 = 5,139,281.50 : x
2. Step 2: Convert to fraction form
   2,503,288/5,139,281.50 = 5,139,281.50/x
3. Step 3: Cross multiply
   2,503,288x = 5,139,281.50 × 5,139,281.50
4. Step 4: Simplify right side
   2,503,288x = 26,412,214,336,242.25
5. Step 5: Solve for x
   x = 26,412,214,336,242.25/2,503,288
6. Step 6: Final answer
   x = 10,551,009.05