Finding the Third Proportional to 111,111 and 240,312

Step by Step Solution

1. Step 1: Write the proportion equation
   111,111 : 240,312 = 240,312 : x
2. Step 2: Convert to fraction form
   111,111/240,312 = 240,312/x
3. Step 3: Cross multiply
   111,111x = 240,312 × 240,312
4. Step 4: Simplify right side
   111,111x = 57,749,857,344
5. Step 5: Solve for x
   x = 57,749,857,344/111,111
6. Step 6: Final answer
   x = 519,749.24