Finding the Third Proportional to 111,880 and 236,718

Step by Step Solution

1. Step 1: Write the proportion equation
   111,880 : 236,718 = 236,718 : x
2. Step 2: Convert to fraction form
   111,880/236,718 = 236,718/x
3. Step 3: Cross multiply
   111,880x = 236,718 × 236,718
4. Step 4: Simplify right side
   111,880x = 56,035,411,524
5. Step 5: Solve for x
   x = 56,035,411,524/111,880
6. Step 6: Final answer
   x = 500,852.80