Finding the Third Proportional to 1,105,209.56 and 1,661,918.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,209.56 : 1,661,918.77 = 1,661,918.77 : x
2. Step 2: Convert to fraction form
   1,105,209.56/1,661,918.77 = 1,661,918.77/x
3. Step 3: Cross multiply
   1,105,209.56x = 1,661,918.77 × 1,661,918.77
4. Step 4: Simplify right side
   1,105,209.56x = 2,761,973,983,536.52
5. Step 5: Solve for x
   x = 2,761,973,983,536.52/1,105,209.56
6. Step 6: Final answer
   x = 2,499,050.02