Finding the Third Proportional to 258,791.63 and 565,560

Step by Step Solution

1. Step 1: Write the proportion equation
   258,791.63 : 565,560 = 565,560 : x
2. Step 2: Convert to fraction form
   258,791.63/565,560 = 565,560/x
3. Step 3: Cross multiply
   258,791.63x = 565,560 × 565,560
4. Step 4: Simplify right side
   258,791.63x = 319,858,113,600
5. Step 5: Solve for x
   x = 319,858,113,600/258,791.63
6. Step 6: Final answer
   x = 1,235,967.79