Finding the Third Proportional to 478.31 and 1,055.06

Step by Step Solution

1. Step 1: Write the proportion equation
   478.31 : 1,055.06 = 1,055.06 : x
2. Step 2: Convert to fraction form
   478.31/1,055.06 = 1,055.06/x
3. Step 3: Cross multiply
   478.31x = 1,055.06 × 1,055.06
4. Step 4: Simplify right side
   478.31x = 1,113,156.88
5. Step 5: Solve for x
   x = 1,113,156.88/478.31
6. Step 6: Final answer
   x = 2,327.26