Finding the Third Proportional to 258,725.50 and 556,796

Step by Step Solution

1. Step 1: Write the proportion equation
   258,725.50 : 556,796 = 556,796 : x
2. Step 2: Convert to fraction form
   258,725.50/556,796 = 556,796/x
3. Step 3: Cross multiply
   258,725.50x = 556,796 × 556,796
4. Step 4: Simplify right side
   258,725.50x = 310,021,785,616
5. Step 5: Solve for x
   x = 310,021,785,616/258,725.50
6. Step 6: Final answer
   x = 1,198,265.29