Finding the Third Proportional to 112,857.75 and 266,400

Step by Step Solution

1. Step 1: Write the proportion equation
   112,857.75 : 266,400 = 266,400 : x
2. Step 2: Convert to fraction form
   112,857.75/266,400 = 266,400/x
3. Step 3: Cross multiply
   112,857.75x = 266,400 × 266,400
4. Step 4: Simplify right side
   112,857.75x = 70,968,960,000
5. Step 5: Solve for x
   x = 70,968,960,000/112,857.75
6. Step 6: Final answer
   x = 628,835.50