Finding the Third Proportional to 789,723 and 1,154,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   789,723 : 1,154,968.50 = 1,154,968.50 : x
2. Step 2: Convert to fraction form
   789,723/1,154,968.50 = 1,154,968.50/x
3. Step 3: Cross multiply
   789,723x = 1,154,968.50 × 1,154,968.50
4. Step 4: Simplify right side
   789,723x = 1,333,952,235,992.25
5. Step 5: Solve for x
   x = 1,333,952,235,992.25/789,723
6. Step 6: Final answer
   x = 1,689,139.40