Finding the Third Proportional to 2,568,891.50 and 5,590,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568,891.50 : 5,590,009.50 = 5,590,009.50 : x
2. Step 2: Convert to fraction form
   2,568,891.50/5,590,009.50 = 5,590,009.50/x
3. Step 3: Cross multiply
   2,568,891.50x = 5,590,009.50 × 5,590,009.50
4. Step 4: Simplify right side
   2,568,891.50x = 31,248,206,210,090.25
5. Step 5: Solve for x
   x = 31,248,206,210,090.25/2,568,891.50
6. Step 6: Final answer
   x = 12,164,081.75