Finding the Third Proportional to 260,812.69 and 556,072.31

Step by Step Solution

1. Step 1: Write the proportion equation
   260,812.69 : 556,072.31 = 556,072.31 : x
2. Step 2: Convert to fraction form
   260,812.69/556,072.31 = 556,072.31/x
3. Step 3: Cross multiply
   260,812.69x = 556,072.31 × 556,072.31
4. Step 4: Simplify right side
   260,812.69x = 309,216,416,729.10
5. Step 5: Solve for x
   x = 309,216,416,729.10/260,812.69
6. Step 6: Final answer
   x = 1,185,588.09