Finding the Third Proportional to 478.88 and 1,047.47

Step by Step Solution

1. Step 1: Write the proportion equation
   478.88 : 1,047.47 = 1,047.47 : x
2. Step 2: Convert to fraction form
   478.88/1,047.47 = 1,047.47/x
3. Step 3: Cross multiply
   478.88x = 1,047.47 × 1,047.47
4. Step 4: Simplify right side
   478.88x = 1,097,190.78
5. Step 5: Solve for x
   x = 1,097,190.78/478.88
6. Step 6: Final answer
   x = 2,291.18