Finding the Third Proportional to 580,632.75 and 853,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   580,632.75 : 853,870.50 = 853,870.50 : x
2. Step 2: Convert to fraction form
   580,632.75/853,870.50 = 853,870.50/x
3. Step 3: Cross multiply
   580,632.75x = 853,870.50 × 853,870.50
4. Step 4: Simplify right side
   580,632.75x = 729,094,830,770.25
5. Step 5: Solve for x
   x = 729,094,830,770.25/580,632.75
6. Step 6: Final answer
   x = 1,255,690.16