Finding the Third Proportional to 55,653 and 131,240

Step by Step Solution

1. Step 1: Write the proportion equation
   55,653 : 131,240 = 131,240 : x
2. Step 2: Convert to fraction form
   55,653/131,240 = 131,240/x
3. Step 3: Cross multiply
   55,653x = 131,240 × 131,240
4. Step 4: Simplify right side
   55,653x = 17,223,937,600
5. Step 5: Solve for x
   x = 17,223,937,600/55,653
6. Step 6: Final answer
   x = 309,488.03