Finding the Third Proportional to 556,757.25 and 860,722.50

Step by Step Solution

1. Step 1: Write the proportion equation
   556,757.25 : 860,722.50 = 860,722.50 : x
2. Step 2: Convert to fraction form
   556,757.25/860,722.50 = 860,722.50/x
3. Step 3: Cross multiply
   556,757.25x = 860,722.50 × 860,722.50
4. Step 4: Simplify right side
   556,757.25x = 740,843,222,006.25
5. Step 5: Solve for x
   x = 740,843,222,006.25/556,757.25
6. Step 6: Final answer
   x = 1,330,639.56