Finding the Third Proportional to 611,922 and 860,196

Step by Step Solution

1. Step 1: Write the proportion equation
   611,922 : 860,196 = 860,196 : x
2. Step 2: Convert to fraction form
   611,922/860,196 = 860,196/x
3. Step 3: Cross multiply
   611,922x = 860,196 × 860,196
4. Step 4: Simplify right side
   611,922x = 739,937,158,416
5. Step 5: Solve for x
   x = 739,937,158,416/611,922
6. Step 6: Final answer
   x = 1,209,201.76