Finding the Third Proportional to 2,087,221.50 and 4,489,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087,221.50 : 4,489,969.50 = 4,489,969.50 : x
2. Step 2: Convert to fraction form
   2,087,221.50/4,489,969.50 = 4,489,969.50/x
3. Step 3: Cross multiply
   2,087,221.50x = 4,489,969.50 × 4,489,969.50
4. Step 4: Simplify right side
   2,087,221.50x = 20,159,826,110,930.25
5. Step 5: Solve for x
   x = 20,159,826,110,930.25/2,087,221.50
6. Step 6: Final answer
   x = 9,658,690.33