Finding the Third Proportional to 152.81 and 245.06

Step by Step Solution

1. Step 1: Write the proportion equation
   152.81 : 245.06 = 245.06 : x
2. Step 2: Convert to fraction form
   152.81/245.06 = 245.06/x
3. Step 3: Cross multiply
   152.81x = 245.06 × 245.06
4. Step 4: Simplify right side
   152.81x = 60,055.63
5. Step 5: Solve for x
   x = 60,055.63/152.81
6. Step 6: Final answer
   x = 393.00