Finding the Third Proportional to 258,787.50 and 565,554

Step by Step Solution

1. Step 1: Write the proportion equation
   258,787.50 : 565,554 = 565,554 : x
2. Step 2: Convert to fraction form
   258,787.50/565,554 = 565,554/x
3. Step 3: Cross multiply
   258,787.50x = 565,554 × 565,554
4. Step 4: Simplify right side
   258,787.50x = 319,851,326,916
5. Step 5: Solve for x
   x = 319,851,326,916/258,787.50
6. Step 6: Final answer
   x = 1,235,961.27