Finding the Third Proportional to 511,139.25 and 1,115,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   511,139.25 : 1,115,104.50 = 1,115,104.50 : x
2. Step 2: Convert to fraction form
   511,139.25/1,115,104.50 = 1,115,104.50/x
3. Step 3: Cross multiply
   511,139.25x = 1,115,104.50 × 1,115,104.50
4. Step 4: Simplify right side
   511,139.25x = 1,243,458,045,920.25
5. Step 5: Solve for x
   x = 1,243,458,045,920.25/511,139.25
6. Step 6: Final answer
   x = 2,432,718.77