Finding the Third Proportional to 847.31 and 1,860.56

Step by Step Solution

1. Step 1: Write the proportion equation
   847.31 : 1,860.56 = 1,860.56 : x
2. Step 2: Convert to fraction form
   847.31/1,860.56 = 1,860.56/x
3. Step 3: Cross multiply
   847.31x = 1,860.56 × 1,860.56
4. Step 4: Simplify right side
   847.31x = 3,461,692.82
5. Step 5: Solve for x
   x = 3,461,692.82/847.31
6. Step 6: Final answer
   x = 4,085.50