Finding the Third Proportional to 788.91 and 1,861.52

Step by Step Solution

1. Step 1: Write the proportion equation
   788.91 : 1,861.52 = 1,861.52 : x
2. Step 2: Convert to fraction form
   788.91/1,861.52 = 1,861.52/x
3. Step 3: Cross multiply
   788.91x = 1,861.52 × 1,861.52
4. Step 4: Simplify right side
   788.91x = 3,465,269.51
5. Step 5: Solve for x
   x = 3,465,269.51/788.91
6. Step 6: Final answer
   x = 4,392.50