Finding the Third Proportional to 55,658.50 and 86,196.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,658.50 : 86,196.75 = 86,196.75 : x
2. Step 2: Convert to fraction form
   55,658.50/86,196.75 = 86,196.75/x
3. Step 3: Cross multiply
   55,658.50x = 86,196.75 × 86,196.75
4. Step 4: Simplify right side
   55,658.50x = 7,429,879,710.56
5. Step 5: Solve for x
   x = 7,429,879,710.56/55,658.50
6. Step 6: Final answer
   x = 133,490.48