Finding the Third Proportional to 260,055 and 558,904.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,055 : 558,904.50 = 558,904.50 : x
2. Step 2: Convert to fraction form
   260,055/558,904.50 = 558,904.50/x
3. Step 3: Cross multiply
   260,055x = 558,904.50 × 558,904.50
4. Step 4: Simplify right side
   260,055x = 312,374,240,120.25
5. Step 5: Solve for x
   x = 312,374,240,120.25/260,055
6. Step 6: Final answer
   x = 1,201,185.29