Finding the Third Proportional to 111,214.75 and 262,426

Step by Step Solution

1. Step 1: Write the proportion equation
   111,214.75 : 262,426 = 262,426 : x
2. Step 2: Convert to fraction form
   111,214.75/262,426 = 262,426/x
3. Step 3: Cross multiply
   111,214.75x = 262,426 × 262,426
4. Step 4: Simplify right side
   111,214.75x = 68,867,405,476
5. Step 5: Solve for x
   x = 68,867,405,476/111,214.75
6. Step 6: Final answer
   x = 619,229.06