Finding the Third Proportional to 250,355.25 and 556,686

Step by Step Solution

1. Step 1: Write the proportion equation
   250,355.25 : 556,686 = 556,686 : x
2. Step 2: Convert to fraction form
   250,355.25/556,686 = 556,686/x
3. Step 3: Cross multiply
   250,355.25x = 556,686 × 556,686
4. Step 4: Simplify right side
   250,355.25x = 309,899,302,596
5. Step 5: Solve for x
   x = 309,899,302,596/250,355.25
6. Step 6: Final answer
   x = 1,237,838.24