Finding the Third Proportional to 611,834 and 860,061

Step by Step Solution

1. Step 1: Write the proportion equation
   611,834 : 860,061 = 860,061 : x
2. Step 2: Convert to fraction form
   611,834/860,061 = 860,061/x
3. Step 3: Cross multiply
   611,834x = 860,061 × 860,061
4. Step 4: Simplify right side
   611,834x = 739,704,923,721
5. Step 5: Solve for x
   x = 739,704,923,721/611,834
6. Step 6: Final answer
   x = 1,208,996.11