Finding the Third Proportional to 88,860 and 193,200

Step by Step Solution

1. Step 1: Write the proportion equation
   88,860 : 193,200 = 193,200 : x
2. Step 2: Convert to fraction form
   88,860/193,200 = 193,200/x
3. Step 3: Cross multiply
   88,860x = 193,200 × 193,200
4. Step 4: Simplify right side
   88,860x = 37,326,240,000
5. Step 5: Solve for x
   x = 37,326,240,000/88,860
6. Step 6: Final answer
   x = 420,056.72