Finding the Third Proportional to 590,886 and 860,494.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,886 : 860,494.50 = 860,494.50 : x
2. Step 2: Convert to fraction form
   590,886/860,494.50 = 860,494.50/x
3. Step 3: Cross multiply
   590,886x = 860,494.50 × 860,494.50
4. Step 4: Simplify right side
   590,886x = 740,450,784,530.25
5. Step 5: Solve for x
   x = 740,450,784,530.25/590,886
6. Step 6: Final answer
   x = 1,253,119.53