Finding the Third Proportional to 691,192 and 1,036,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   691,192 : 1,036,788.50 = 1,036,788.50 : x
2. Step 2: Convert to fraction form
   691,192/1,036,788.50 = 1,036,788.50/x
3. Step 3: Cross multiply
   691,192x = 1,036,788.50 × 1,036,788.50
4. Step 4: Simplify right side
   691,192x = 1,074,930,393,732.25
5. Step 5: Solve for x
   x = 1,074,930,393,732.25/691,192
6. Step 6: Final answer
   x = 1,555,183.50