Finding the Third Proportional to 258,976.50 and 565,986

Step by Step Solution

1. Step 1: Write the proportion equation
   258,976.50 : 565,986 = 565,986 : x
2. Step 2: Convert to fraction form
   258,976.50/565,986 = 565,986/x
3. Step 3: Cross multiply
   258,976.50x = 565,986 × 565,986
4. Step 4: Simplify right side
   258,976.50x = 320,340,152,196
5. Step 5: Solve for x
   x = 320,340,152,196/258,976.50
6. Step 6: Final answer
   x = 1,236,946.80