Finding the Third Proportional to 580,685.50 and 1,253,216

Step by Step Solution

1. Step 1: Write the proportion equation
   580,685.50 : 1,253,216 = 1,253,216 : x
2. Step 2: Convert to fraction form
   580,685.50/1,253,216 = 1,253,216/x
3. Step 3: Cross multiply
   580,685.50x = 1,253,216 × 1,253,216
4. Step 4: Simplify right side
   580,685.50x = 1,570,550,342,656
5. Step 5: Solve for x
   x = 1,570,550,342,656/580,685.50
6. Step 6: Final answer
   x = 2,704,648.80