Finding the Third Proportional to 612,036 and 860,351.63

Step by Step Solution

1. Step 1: Write the proportion equation
   612,036 : 860,351.63 = 860,351.63 : x
2. Step 2: Convert to fraction form
   612,036/860,351.63 = 860,351.63/x
3. Step 3: Cross multiply
   612,036x = 860,351.63 × 860,351.63
4. Step 4: Simplify right side
   612,036x = 740,204,918,640.14
5. Step 5: Solve for x
   x = 740,204,918,640.14/612,036
6. Step 6: Final answer
   x = 1,209,414.02