Finding the Third Proportional to 712,686.50 and 1,584,740

Step by Step Solution

1. Step 1: Write the proportion equation
   712,686.50 : 1,584,740 = 1,584,740 : x
2. Step 2: Convert to fraction form
   712,686.50/1,584,740 = 1,584,740/x
3. Step 3: Cross multiply
   712,686.50x = 1,584,740 × 1,584,740
4. Step 4: Simplify right side
   712,686.50x = 2,511,400,867,600
5. Step 5: Solve for x
   x = 2,511,400,867,600/712,686.50
6. Step 6: Final answer
   x = 3,523,850.76