Finding the Third Proportional to 53.72 and 125.30

Step by Step Solution

1. Step 1: Write the proportion equation
   53.72 : 125.30 = 125.30 : x
2. Step 2: Convert to fraction form
   53.72/125.30 = 125.30/x
3. Step 3: Cross multiply
   53.72x = 125.30 × 125.30
4. Step 4: Simplify right side
   53.72x = 15,699.31
5. Step 5: Solve for x
   x = 15,699.31/53.72
6. Step 6: Final answer
   x = 292.25