Finding the Third Proportional to 111,107 and 243,312

Step by Step Solution

1. Step 1: Write the proportion equation
   111,107 : 243,312 = 243,312 : x
2. Step 2: Convert to fraction form
   111,107/243,312 = 243,312/x
3. Step 3: Cross multiply
   111,107x = 243,312 × 243,312
4. Step 4: Simplify right side
   111,107x = 59,200,729,344
5. Step 5: Solve for x
   x = 59,200,729,344/111,107
6. Step 6: Final answer
   x = 532,826.28