Finding the Third Proportional to 42,868 and 91,400

Step by Step Solution

1. Step 1: Write the proportion equation
   42,868 : 91,400 = 91,400 : x
2. Step 2: Convert to fraction form
   42,868/91,400 = 91,400/x
3. Step 3: Cross multiply
   42,868x = 91,400 × 91,400
4. Step 4: Simplify right side
   42,868x = 8,353,960,000
5. Step 5: Solve for x
   x = 8,353,960,000/42,868
6. Step 6: Final answer
   x = 194,876.36