Finding the Third Proportional to 611,914 and 860,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   611,914 : 860,187.50 = 860,187.50 : x
2. Step 2: Convert to fraction form
   611,914/860,187.50 = 860,187.50/x
3. Step 3: Cross multiply
   611,914x = 860,187.50 × 860,187.50
4. Step 4: Simplify right side
   611,914x = 739,922,535,156.25
5. Step 5: Solve for x
   x = 739,922,535,156.25/611,914
6. Step 6: Final answer
   x = 1,209,193.67